<PAGE>
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
 
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM 10-Q
 

<TABLE>
<C>            <S>
 /X/           QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
               SECURITIES EXCHANGE ACT OF 1934
</TABLE>

 
                FOR THE QUARTERLY PERIOD ENDED JANUARY 30, 2000

<TABLE>
<C>            <S>
 
 / /           TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
               SECURITIES EXCHANGE ACT OF 1934
</TABLE>

 
        FOR THE TRANSITION PERIOD FROM ______________ TO ______________
 
                         COMMISSION FILE NO. 000-27999
 
                            ------------------------
 
                              FINISAR CORPORATION
 
             (Exact name of registrant as specified in its charter)
 

<TABLE>
<S>                                                           <C>
                DELAWARE                                            94-3038428
    (State or Other Jurisdiction of                              (I.R.S. Employer
     Incorporation or Organization)                            Identification No.)
 
        1308 MOFFETT PARK DRIVE,
         SUNNYVALE, CALIFORNIA                                      94089-1133
(Address of Principal Executive Offices)                            (Zip Code)
</TABLE>

 
       Registrant's Telephone Number, Including Area Code: (408) 548-1000
 
                                 NOT APPLICABLE
   (Former Name, Former Address and Former Fiscal Year, if Changed Since Last
                                    Report)
 
                            ------------------------
 
    Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes /X/  No / /
 
    As of January 30, 2000, there were 51,253,428 shares of the registrant's no
par value Common Stock outstanding.
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

<PAGE>
                              FINISAR CORPORATION
                                     INDEX
 

<TABLE>
<CAPTION>
                                                                         PAGE(S)
                                                                         --------
<S>        <C>                                                           <C>

PART I     FINANCIAL INFORMATION
 

Item 1.    Financial Statements
 
           Condensed Balance Sheets as of January 31, 2000 (unaudited)
             and
             April 30, 1999............................................       3
 
           Condensed Statements of Operations (unaudited) for the
             fiscal quarter and nine months ended January 31, 2000 and
             1999......................................................       4
 
           Condensed Statements of Cash Flows (unaudited) for the nine
             months ended January 31, 2000 and 1999....................       5
 
           Notes to Condensed Financial Statements (unaudited).........    6-11
 

Item 2.    Management's Discussion and Analysis of Financial Condition
             and Results of Operations.................................   12-28
 

Item 3.    Quantitative and Qualitative Disclosure About Market Risk...      28
 

PART II    OTHER INFORMATION
 

Item 1.    Legal Proceedings...........................................      29
 

Item 2.    Changes in Securities and Use of Proceeds...................      29
 

Item 6.    Exhibits and Reports on Form 8-K............................      29
 
Signatures.............................................................      30
 
Index to Exhibits......................................................      31
</TABLE>

 
                                       2

<PAGE>

PART I--FINANCIAL INFORMATION
 

ITEM 1. FINANCIAL STATEMENTS
 
                              FINISAR CORPORATION
                            CONDENSED BALANCE SHEETS
                                 (IN THOUSANDS)
 

<TABLE>
<CAPTION>
                                                              JANUARY 31,   APRIL 30,
                                                                 2000          1999
                                                              -----------   ----------
                                                              (UNAUDITED)   (AUDITED)
<S>                                                           <C>           <C>
ASSETS
Current assets:
  Cash and cash equivalents.................................    $ 66,356     $  5,044
  Short-term investments....................................      67,759           --
  Accounts receivable, trade (net)..........................      10,170        6,653
  Accounts receivable, other................................         140            3
  Inventories...............................................      15,087        5,236
  Income tax receivable.....................................         148           --
  Deferred income taxes.....................................       2,360        1,047
  Prepaid expenses..........................................         337          194
                                                                --------     --------
    Total current assets....................................     162,357       18,177
Property, equipment and improvements (net)..................       5,885        2,482
Other assets................................................         463          296
                                                                --------     --------
    Total assets............................................    $168,705     $ 20,955
                                                                ========     ========
 
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................    $  4,248     $  1,394
  Accrued compensation......................................       2,258        1,499
  Other accrued liabilities.................................       2,279        1,476
  Income tax payable........................................       1,430          743
  Capital lease obligations, current portion................          21           54
                                                                --------     --------
    Total current liabilities...............................      10,236        5,166
Notes payable, long-term portion............................          --       11,015
Capital lease obligations, long-term portion................          22           17
Other long-term liabilities.................................         132           --
Preferred stock.............................................          --       26,260
                                                                --------     --------
    Total liabilities.......................................      10,390       42,458
Stockholders' equity:
Common stock................................................     194,313        4,304
Notes receivable from stockholders..........................      (3,696)      (1,521)

Deferred stock compensation.................................     (11,143)      (1,975)
Unrealized loss on short-term investments...................         (57)          --
Retained earnings (accumulated deficit).....................     (21,102)     (22,311)
                                                                --------     --------
    Total stockholders' equity (deficit)....................     158,315      (21,503)
    Total liabilities and stockholders' equity..............    $168,705     $ 20,955
                                                                ========     ========
</TABLE>

 
                                       3

<PAGE>
                              FINISAR CORPORATION
 
                       CONDENSED STATEMENTS OF OPERATIONS
 
                                  (UNAUDITED)
 
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 

<TABLE>
<CAPTION>
                                                          THREE MONTHS ENDED     NINE MONTHS ENDED
                                                              JANUARY 31,           JANUARY 31,
                                                          -------------------   -------------------
                                                            2000       1999       2000       1999
                                                          --------   --------   --------   --------
<S>                                                       <C>        <C>        <C>        <C>
Revenues................................................  $16,510    $ 8,985    $46,466    $23,181
Cost of revenues........................................    8,122      4,171     22,252      9,895
                                                          -------    -------    -------    -------
  Gross profit..........................................    8,388      4,814     24,214     13,286
Operating expenses:
  Research and development..............................    3,878      1,890     10,051      5,048
  Sales and marketing...................................    1,643      1,160      5,080      2,864
  General and administrative............................      974        484      2,597      1,203
  Amortization of deferred stock compensation...........    1,781        120      3,791        219
                                                          -------    -------    -------    -------
    Total operating expenses............................    8,276      3,654     21,519      9,334
                                                          -------    -------    -------    -------
Income from operations..................................      112      1,160      2,695      3,952
Interest income, net....................................    1,342       (141)     1,169       (131)
Other non-operating income (expense), net...............      (16)       (21)       (72)         4
                                                          -------    -------    -------    -------
Income before income taxes..............................    1,438        998      3,792      3,825
Provision for income taxes..............................    1,095        384      2,583      1,410
                                                          -------    -------    -------    -------
Net income..............................................  $   343    $   614    $ 1,209    $ 2,415
                                                          =======    =======    =======    =======
 
Net income per share:
  Basic.................................................  $  0.01    $  0.02    $  0.03    $  0.07
                                                          =======    =======    =======    =======
  Diluted...............................................  $  0.01    $  0.01    $  0.03    $  0.06
                                                          =======    =======    =======    =======
Shares used in per share computations:
  Basic.................................................   45,080     28,585     34,628     36,638
                                                          =======    =======    =======    =======
  Diluted...............................................   51,845     44,105     46,029     42,424
                                                          =======    =======    =======    =======
</TABLE>

 
                                       4

<PAGE>
                              FINISAR CORPORATION
 
                       CONDENSED STATEMENTS OF CASH FLOWS
 
                           (UNAUDITED, IN THOUSANDS)
 

<TABLE>
<CAPTION>
                                                                       NINE MONTHS ENDED
                                                                          JANUARY 31,
                                                               ----------------------------------
                                                                    2000               1999
                                                               ---------------    ---------------
<S>                                                            <C>                <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income.................................................       $  1,209           $  2,415
Adjustments to reconcile net income to net cash provided by
  (used in) operating activities:
  Amortization of deferred stock compensation..............          3,791                219
  Depreciation and amortization............................            788                281
  Changes in operating assets and liabilities:
  Accounts receivable......................................         (3,517)            (3,829)
  Inventories..............................................         (9.851)            (2,317)
  Prepaid and other assets.................................           (315)              (360)
  Accounts payable.........................................          2,854                507
  Accrued compensation.....................................            759              1,017
  Other accrued liabilities................................          1,053                533
  Income taxes, net........................................           (774)              (301)
                                                                  --------           --------
    Net cash (used in) operating activities................         (4,003)            (1,835)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures.......................................         (4,441)            (1,352)
Short-term investments.....................................        (67,816)                --
                                                                  --------           --------
    Net cash (used in) investing activities................        (72,257)            (1,352)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock in initial public
  offering, net............................................        150,978                 --
Redemption of preferred stock..............................         (2,640)                --
Proceeds from issuance of preferred stock..................             --             26,260
Repurchase of common stock.................................             --            (31,708)
Proceeds from exercise of stock options, net of loans......            277                396
Proceeds from borrowings under bank note...................             --             11,015
Repayment of borrowings under bank note....................        (11,015)              (450)
Principal payments on lease obligations....................            (28)               (29)
                                                                  --------           --------
    Net cash provided by financing activities..............        137,572              5,484
                                                                  --------           --------
    Net increase in cash and equivalents...................         61,312              2,297
Cash and cash equivalents, beginning of period.............          5,044                722
                                                                  --------           --------
Cash and cash equivalents, end of period...................       $ 66,356           $  3,019
                                                                  ========           ========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
  Cash paid during the period for:
  Interest.................................................            510                253
  Income taxes.............................................          3,352              1,710
SUPPLEMENTAL DISCLOSURE OF NON-CASH FINANCING ACTIVITIES:
  Loans to related parties for stock option exercises......          2,175                221
  Conversion of preferred stock to common stock............         23,620                 --
  Deferred stock compensation related to grants of certain
    stock options..........................................         12,959              2,403
</TABLE>

 
                                       5

<PAGE>
                              FINISAR CORPORATION
 
                    NOTES TO CONDENSED FINANCIAL STATEMENTS
 
                                  (UNAUDITED)
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
DESCRIPTION OF BUSINESS
 
    Finisar Corporation ("Finisar" or the "Company") designs, manufactures, and
markets fiber optic subsystems and network performance test systems for
high-speed data communications.
 
INTERIM FINANCIAL INFORMATION AND BASIS OF PRESENTATION
 
    The interim financial information at January 31, 2000 and for the three
months and nine months ended January 31, 2000 and 1999 is unaudited but, in the
opinion of management, has been prepared on the same basis as the annual
financial statements and includes all adjustments (consisting only of normal
recurring adjustments) that Finisar considers necessary for a fair presentation
of its financial position at such date and its operating results and cash flows
for those periods. Results for the interim period are not necessarily indicative
of the results to be expected for the entire year, or any future period.
 
    The balance sheet at April 30, 1999 has been derived from the audited
financial statements at that date but does not include all of the information
and footnotes required by generally accepted accounting principles for complete
financial statements.
 
FISCAL PERIODS
 
    In fiscal 2000, the Company began to maintain its financial records on the
basis of a fiscal year ending on April 30, with fiscal quarters ending on the
Sunday closest to the end of the period (thirteen-week periods). For ease of
reference, all references to period end dates have been presented as though the
period ended on the last day of the calendar month. The first three quarters of
fiscal 2000 ended on August 1, 1999, October 31, 1999 and January 30, 2000,
respectively.
 
USE OF ESTIMATES
 
    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from these estimates.
 
REVENUE RECOGNITION
 
    Revenue is recognized at the time of product shipment, net of allowances for
estimated returns. Warranty expenses are also estimated and provided for at the
time of shipment.
 
CONCENTRATIONS OF CREDIT RISK
 
    Financial instruments which potentially subject Finisar to concentrations of
credit risk include cash and cash equivalents, short-term investments and
accounts receivable. Finisar places its cash and cash equivalents and short-term
investments with high-credit quality financial institutions. At times, such
investments may be in excess of FDIC insurance limits. Concentrations of credit
risk with respect to accounts receivable exist to the extent of amounts
presented in the financial statements. Accounts receivable from two customers
represented 33.8% and 16.0% of the total balance at April 30, 1999 and three
customers represented 27.1%, 16.8% and 12.2% at January 31, 2000, respectively.
Generally,
 
                                       6

<PAGE>
                              FINISAR CORPORATION
 
              NOTES TO CONDENSED FINANCIAL STATEMENTS (CONTINUED)
 
                                  (UNAUDITED)
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
Finisar does not require collateral or other security to support customer
receivables. Finisar performs periodic credit evaluations of its customers and
maintains an allowance for potential credit losses based on historical
experience and other information available to management. Losses to date have
been within management's expectations.
 
CURRENT VULNERABILITIES DUE TO CERTAIN CONCENTRATIONS
 
    Finisar sells products primarily to customers located in North America.
During the third quarter and first nine months of fiscal 2000, sales to two
customers, each representing more than 10% of revenues, totaled 43.0% and 50.7%
of total revenues, respectively. Sales to two customers, each representing more
than 10% of revenues, in the third quarter and first nine months of fiscal 1999
represented 45.3% and 48.6% of total revenues, respectively.
 
RESEARCH AND DEVELOPMENT
 
    Research and development expenditures are charged to operations as incurred.
 
CASH AND CASH EQUIVALENTS
 
    Finisar's cash equivalents consist of money market funds with qualified
financial institutions. Finisar considers all highly liquid investments with an
original maturity from the date of purchase of three months or less to be cash
equivalents.
 
SHORT-TERM INVESTMENTS
 
    Short-term investments consist of interest bearing securities with
maturities greater than 90 days. The Company has adopted the provisions of
Statement of Financial Accounting Standard No. 115, "Accounting for Certain
Investments in Debt and Equity Securities" ("SFAS 115"). Under SFAS 115, the
Company has classified its short-term investments as available-for-sale.
Available-for-sale securities are stated at market value and unrealized holding
gains and losses, net of the related tax effect, are excluded from earnings and
are reported as a separate component of stockholders' equity until realized. A
decline in the market value of the security below cost that is deemed other than
temporary is charged to earnings, resulting in the establishment of a new cost
basis for the security. At January 30, 2000, the Company's marketable investment
securities consisted of highly liquid investments in both taxable and tax free
municipal obligations with various maturity dates through November 1, 2002. The
difference between market value and cost of these securities at January 30, 2000
was $57,000.
 
INVENTORIES
 
    Inventories are stated at the lower of cost (determined on a first-in,
first-out basis) or market.
 
PROPERTY, EQUIPMENT AND IMPROVEMENTS
 
    Property, equipment and improvements are stated at cost, net of accumulated
depreciation and amortization. Property, equipment and improvements are
depreciated on a straight-line basis over the estimated useful lives of the
assets, generally five years.
 
                                       7

<PAGE>
                              FINISAR CORPORATION
 
              NOTES TO CONDENSED FINANCIAL STATEMENTS (CONTINUED)
 
                                  (UNAUDITED)
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
STOCK-BASED COMPENSATION
 
    Finisar accounts for employee stock option grants in accordance with
Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to
Employees" ("APB Opinion No. 25") and has adopted the disclosure-only
alternative of Statement of Financial Accounting Standards No. 123, "Accounting
for Stock-Based Compensation" ("SFAS 123").
 
NET INCOME PER SHARE
 
    Basic and diluted net income per share are presented in accordance with SFAS
No. 128, "Earnings Per Share" ("SFAS 128"), for all periods presented. Pursuant
to Securities and Exchange Commission Staff Accounting Bulletin No. 98, common
shares and convertible preferred shares issued or granted for nominal
consideration prior to the effective date of Finisar's initial public offering
are required to be included in the calculation of basic and diluted net income
per share as if they had been outstanding for all periods presented. To date,
Finisar has not had any issuances or grants for nominal consideration.
 
    Basic net income per share has been computed using the weighted-average
number of shares of common stock outstanding during the period. Diluted net
income per share has been computed using the weighted-average number of shares
of common stock and dilutive potential common shares from options (under the
treasury stock method) and convertible redeemable preferred stock (on an if-
converted basis) outstanding during the period.
 
COMPREHENSIVE INCOME
 
    Effective May 1, 1998, Finisar adopted Financial Accounting Standards Board
("FASB") Statement of Financial Accounting Standard No. 130, "Reporting
Comprehensive Income." SFAS 130 establishes rules for reporting and display of
comprehensive income and its components. SFAS 130 requires unrealized gains or
losses on the Company's available-for-sale securities to be included in
comprehensive income. The amount of the change in net unrealized loss on
available-for-sale securities for the three and nine months ended January 31,
2000 was $57,000. No such gain or loss existed for the three and nine months
ended January 31, 1999. As such items have not been material, separate
presentation has not been made.
 
SEGMENT REPORTING
 
    Effective May 1, 1998, Finisar adopted Statement of Financial Accounting
Standards No. 131, "Disclosures about Segments of an Enterprise and Related
Information" ("SFAS 131"). SFAS 131 superseded SFAS No. 14, "Financial Reporting
for Segments of a Business Enterprise." SFAS 131 establishes standards for the
way that public business enterprises report information about operating segments
in interim financial reports. SFAS 131 also establishes standards for related
disclosures about products and services, geographic areas, and major customers.
The adoption of SFAS 131 did not affect Finisar's results of operations or
financial position.
 
                                       8

<PAGE>
                              FINISAR CORPORATION
 
              NOTES TO CONDENSED FINANCIAL STATEMENTS (CONTINUED)
 
                                  (UNAUDITED)
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
EFFECT OF NEW ACCOUNTING STATEMENTS
 
    In June 1998, the FASB issued Statement of Financial Accounting Standards
No. 133, "Accounting for Derivative Instruments and Hedging Activities"
("SFAS 133"). Finisar is required to adopt SFAS 133 for the year ending
April 30, 2002. SFAS 133 establishes methods of accounting for derivative
financial instruments and hedging activities. Because Finisar currently holds no
derivative financial instruments as defined by SFAS 133 and does not currently
engage in hedging activities, adoption of SFAS 133 is not expected to have a
material effect on Finisar's financial condition or results of operations.
 
    In March 1998, the American Institute of Certified Public Accountants issued
SOP 98-1, "Accounting for the Costs of Computer Software Developed or Obtained
for Internal Use" ("SOP 98-1"). SOP 981 requires that entities capitalize
certain costs related to internal use software once certain criteria have been
met. Finisar is required to implement SOP 98-1 for the year ending April 30,
2000. Adoption of SOP 98-1 is not expected to have a material effect on
Finisar's financial condition or results of operations.
 
2. NET INCOME PER SHARE
 
    The following table presents the calculation of basic and diluted net income
per share (in thousands, except per share data):
 

<TABLE>
<CAPTION>
                                                           THREE MONTHS           NINE MONTHS
                                                              ENDED                  ENDED
                                                           JANUARY 31,            JANUARY 31,
                                                       --------------------   --------------------
                                                         2000        1999       2000        1999
                                                       ---------   --------   ---------   --------
                                                           (UNAUDITED)            (UNAUDITED)
<S>                                                    <C>         <C>        <C>         <C>
Numerator:
  Net income.........................................   $   343    $   614     $ 1,209    $ 2,415
Historical:
Denominator for basic net income per share:
  Weighted-average shares outstanding-basic..........    45,080     28,585      34,628     36,638
Effect of dilutive securities:
  Employee stock options.............................     1,727      3,935       1,446      1,736
  Stock subject to repurchase........................     3,854      2,603       3,553      1,251
  Convertible redeemable preferred stock.............     1,184      8,982       6,402      2,799
                                                        -------    -------     -------    -------
Dilutive potential common shares.....................     6,765     15,520      11,401      5,786
                                                        -------    -------     -------    -------
Denominator for diluted net income per share.........    51,845     44,105      46,029     42,424
                                                        =======    =======     =======    =======
 
Basic net income per share...........................   $  0.01    $  0.02     $  0.03    $  0.07
                                                        =======    =======     =======    =======
Diluted net income per share.........................   $  0.01    $  0.01     $  0.03    $  0.06
                                                        =======    =======     =======    =======
</TABLE>

 
                                       9

<PAGE>
                              FINISAR CORPORATION
 
              NOTES TO CONDENSED FINANCIAL STATEMENTS (CONTINUED)
 
                                  (UNAUDITED)
 
3. INVENTORIES
 
    Inventories consist of the following (in thousands):
 

<TABLE>
<CAPTION>
                                                              JANUARY 31,    APRIL 30,
                                                                  2000          1999
                                                              ------------   ----------
                                                              (UNAUDITED)
<S>                                                           <C>            <C>
Raw materials...............................................    $ 7,929        $2,908
Work-in-process.............................................      6,057         1,763
Finished goods..............................................      1,101           565
                                                                -------        ------
  Total inventories.........................................    $15,087        $5,236
                                                                =======        ======
</TABLE>

 
4. PROPERTY, EQUIPMENT AND IMPROVEMENTS
 
    Property, equipment and improvements consist of the following (in
thousands):
 

<TABLE>
<CAPTION>
                                                              JANUARY 31,    APRIL 30,
                                                                  2000          1999
                                                              ------------   ----------
                                                              (UNAUDITED)
<S>                                                           <C>            <C>
Computer equipment and software.............................    $ 1,663        $  840
Office equipment, furniture, and fixtures...................        687           445
Machinery and equipment.....................................      3,853         1,795
Leasehold improvements......................................        932            --
                                                                -------        ------
Total capital equipment.....................................      7,135         3,080
Accumulated depreciation and amortization...................     (1,250)         (598)
                                                                -------        ------
Property, equipment and improvements, net...................    $ 5,885        $2,482
                                                                =======        ======
</TABLE>

 
5. INCOME TAXES
 
    Income taxes for the respective periods were computed using the effective
tax rate estimated to be applicable for the fiscal year, which is subject to
ongoing review and evaluation by management.
 
6. DEFERRED COMPENSATION
 
    In connection with the grant of certain stock options to employees, Finisar
recorded deferred stock compensation of $2.4 million during fiscal 1999 and
$13.0 million during the nine months ended January 31, 2000, representing the
difference between the deemed value of our common stock for accounting purposes
and the option exercise price of these options at the date of grant. Deferred
compensation is presented as a reduction of stockholders' equity, with graded
amortization recorded over the five-year vesting period. The amortization
expense relates to options awarded to employees in all operating expense
categories. The following table summarizes the amount of deferred compensation
expense which Finisar has recorded and the amortization it has recorded and
expects to record in
 
                                       10

<PAGE>
                              FINISAR CORPORATION
 
              NOTES TO CONDENSED FINANCIAL STATEMENTS (CONTINUED)
 
                                  (UNAUDITED)
 
6. DEFERRED COMPENSATION (CONTINUED)
future periods. Amounts to be recorded in future periods could decrease if
options for which accrued but unvested compensation has been recorded are
forfeited (in thousands):
 

<TABLE>
<CAPTION>
                                                                DEFERRED
                                                              COMPENSATION
                                                               GENERATED     AMORTIZATION
                                                              ------------   ------------
<S>                                                           <C>            <C>
Second quarter ended October 31, 1998.......................     $ 1,033        $    99
Third quarter ended January 31, 1999........................          --            120
Fourth quarter ended April 30, 1999.........................       1,370            209
First quarter ended July 31, 1999...........................          --            287
Second quarter ended October 31, 1999.......................      12,959          1,723
Third quarter ended January 31, 2000........................          --          1,781
Fourth quarter ending April 30, 2000........................          --          1,740
Fiscal year ending April 30, 2001...........................          --          4,427
Fiscal year ending April 30, 2002...........................          --          2,659
Fiscal year ending April 30, 2003...........................          --          1,467
Fiscal year ending April 30, 2004...........................          --            715
Fiscal year ending April 30, 2005...........................          --            135
                                                                 -------        -------
    Total...................................................     $15,362        $15,362
                                                                 =======        =======
</TABLE>

 
                                       11

<PAGE>

I
TEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
  OF OPERATIONS
 
    The following is management's discussion and analysis of certain significant
factors which have affected the Company's financial position and operating
results during the periods included in the unaudited condensed financial
statements included herein. The discussion in this section contains
forward-looking statements that involve risks and uncertainties. Our actual
results could differ materially from those discussed herein. Factors that could
cause or contribute to such differences include, but are not limited to, those
discussed below.
 
OVERVIEW
 
    We are a leading provider of fiber optic subsystems and network performance
test systems which enable high-speed data communications over local area
networks, or LANs, and storage area networks, or SANs and, more recently, have
developed products for digitizing the return path of a CATV network and for
aggregating data traffic in a metropolitan area network, or MAN. We are focused
on providing high-performance, reliable, value-added optical subsystems for
networking and storage equipment manufacturers that develop and market systems
based on Gigabit Ethernet and Fibre Channel protocols. Our line of optical
subsystems supports a wide range of network applications, transmission speeds,
distances and mediums. We also provide unique network performance test systems
which assist networking and storage equipment manufacturers in the design of
reliable, high-speed networking systems and the testing and monitoring of the
performance of these systems.
 
    We sell our products through our direct sales force, with the support of our
manufacturers' representatives, directly to domestic customers and indirectly
through distribution channels to international customers. We recognize revenues
at the time of shipment. The evaluation and qualification cycle prior to the
initial sale for our optical subsystems may span a year or more, while the sales
cycle for our test systems is usually considerably shorter. Historically,
substantially all of our sales have been made to customers in North America. To
address expanding international markets, we have recently established
relationships with distributors in Japan, the United Kingdom and Israel.
 
    The market for optical subsystems is characterized by declining average
selling prices, or ASPs, resulting from factors such as increased competition,
the introduction of new products and a rapid growth in unit volumes as
manufacturers continue to deploy network and storage systems. We anticipate that
our ASPs will continue to decrease in future periods, although the timing and
amount of these decreases cannot be predicted with any certainty.
 
    Our cost of revenues consists of materials, salaries and related expenses
for manufacturing personnel, manufacturing overhead and warranty expense. We
outsource the majority of our assembly operations, and we conduct manufacturing
engineering, supply chain management, quality assurance and documentation
control at our facility in Sunnyvale, California. Accordingly, a significant
portion of our cost of revenues consists of payments to our contract
manufacturers. There can be no assurance that we will be able to reduce our cost
of revenues to keep pace with anticipated decreases in ASPs.
 
    Our gross profit margins vary among our product families, and our gross
margins are generally higher on our network performance test systems than on our
optical subsystems. We expect that our overall gross margins will fluctuate from
period to period as a result of shifts in product mix, anticipated decreases in
ASPs and our ability to reduce product costs.
 
    Research and development expenses consist primarily of salaries and related
expenses for design engineers and other technical personnel, the cost of
developing prototypes and fees paid to consultants. We charge all research and
development expenses to operations as incurred. We believe that continued
investment in research and development is critical to our long-term success.
Accordingly, we expect that our research and development expenses will increase
in future periods.
 
    Sales and marketing expenses consist primarily of commissions paid to
manufacturers' representatives, salaries and related expenses for personnel
engaged in sales, marketing and field support activities and other costs
associated with the promotion of our products. We intend to pursue
 
                                       12

<PAGE>
aggressive selling and marketing campaigns and to expand our direct sales
organization. We therefore expect that our sales and marketing expenses will
increase in future periods.
 
    General and administrative expenses consist primarily of salaries and
related expenses for administrative, finance and human resources personnel,
professional fees and other corporate expenses. We expect that, in support of
our continued growth and our operations as a public company, general and
administrative expenses will continue to increase for the foreseeable future.
General and administrative expenses are also likely to be affected in future
periods by significant legal fees and expenses incurred in connection with
pending patent litigation.
 
RESULTS OF OPERATIONS
 
    The following table sets forth certain items from the statement of
operations as a percentage of revenues excluding the amortization of deferred
compensation associated with the issuance of stock options prior to the
Company's initial public offering on November 12, 1999:
 

<TABLE>
<CAPTION>
                                                                 THREE MONTHS           NINE MONTHS
                                                                     ENDED                 ENDED
                                                                  JANUARY 31,           JANUARY 31,
                                                              -------------------   -------------------
                                                                2000       1999       2000       1999
                                                              --------   --------   --------   --------
<S>                                                           <C>        <C>        <C>        <C>
Revenues....................................................   100.0%     100.0%     100.0%     100.0%
Cost of revenues............................................    49.2       46.4       47.9       42.7
                                                               -----      -----      -----      -----
  Gross profit..............................................    50.8       53.6       52.1       57.3
Operating expenses:
  Research and development..................................    23.5       21.0       21.6       21.8
  Sales and marketing.......................................     9.9       12.9       10.9       12.4
  General and administrative................................     5.9        5.4        5.6        5.2
                                                               -----      -----      -----      -----
  Total operating expenses..................................    39.3       39.3       38.1       39.4
                                                               -----      -----      -----      -----
Income from operations......................................    11.5       14.3       14.0       17.9
Interest income (expense), net..............................     8.1       (1.6)       2.5       (0.5)
Other income (expense), net.................................    (0.1)      (0.2)      (0.1)        --
                                                               -----      -----      -----      -----
Income before income taxes..................................    19.5       12.5       16.4       17.4
Provision for income taxes..................................     6.6        4.3        5.6        6.0
                                                               -----      -----      -----      -----
Net income (excluding amortization of deferred stock
  compensation).............................................    12.9%       8.2%      10.8%      11.4%
                                                               =====      =====      =====      =====
</TABLE>

 
    The following table highlights certain aspects of the Company's revenues for
the three-month and nine-month periods ended January 31, 2000 and 1999. Finisar
operates in one industry segment, the design, manufacture, and marketing of
fiber optic subsystems and network performance test systems for high-speed data
communications:
 

<TABLE>
<CAPTION>
                                                                 THREE MONTHS           NINE MONTHS
                                                                     ENDED                 ENDED
                                                                  JANUARY 31,           JANUARY 31,
                                                              -------------------   -------------------
                                                                2000       1999       2000       1999
                                                              --------   --------   --------   --------
<S>                                                           <C>        <C>        <C>        <C>
Revenues (thousands):
  Optical subsystems........................................  $10,917    $ 5,271    $31,225    $13,503
  Test systems..............................................    5,593      3,714     15,241      9,678
                                                              -------    -------    -------    -------
    Total...................................................  $16,510    $ 8,985    $46,466    $23,181
                                                              =======    =======    =======    =======
Geographic coverage (thousands):
  North America.............................................  $15,664    $ 8,498    $44,105    $21,965
  Rest of World.............................................      846        487      2,361      1,216
                                                              -------    -------    -------    -------
    Total...................................................  $16,510    $ 8,985    $46,466    $23,181
                                                              =======    =======    =======    =======
As a percent of revenues:
  Optical subsystems........................................     66.1%      58.7%      67.2%      58.3%
  Test systems..............................................     33.9       41.3       32.8       41.7
                                                              -------    -------    -------    -------
    Total...................................................    100.0%     100.0%     100.0%     100.0%
                                                              =======    =======    =======    =======
Geographic coverage:
  North America.............................................     94.9%      94.6%      94.9%      94.8%
  Rest of World.............................................      5.1        5.4        5.1        5.2
                                                              -------    -------    -------    -------
    Total...................................................    100.0%     100.0%     100.0%     100.0%
                                                              =======    =======    =======    =======
</TABLE>

 
                                       13

<PAGE>
COMPARISON OF THREE MONTHS ENDED JANUARY 31, 2000 AND 1999
 
    REVENUES.  Revenues increased 84% from $9.0 million for the three months
ended January 31, 1999 to $16.5 million for the three months ended January 31,
2000. This reflects a 107% increase in sales of optical subsystems from $5.3
million for the three months ended January 31, 1999 to $10.9 million for the
three months ended January 31, 2000 and a 51% increase in sales of test systems
from $3.7 million for the three months ended January 31, 1999 to $5.6 million
for the three months ended January 31, 2000. Sales of optical subsystems and
test systems represented 66.1% and 33.9%, respectively, of total revenues for
the three months ended January 31, 2000, compared to 58.7% and 41.3%,
respectively, for the three months ended January 31, 1999.
 
    GROSS PROFIT.  Gross profit increased from $4.8 million for the three months
ended January 31, 1999 to $8.4 million for the three months ended January 31,
2000. As a percentage of revenues, gross profit decreased from 53.6% for the
three months ended January 31, 1999 to 50.8% for the three months ended January
31, 2000. This decrease in gross profit margin reflects lower ASPs for optical
subsystems as a result of increased shipment levels and a higher percentage of
total revenue from the sale of optical subsystems (66.1% vs. 58.7%) which
generally have lower gross margins than test systems.
 
    RESEARCH AND DEVELOPMENT EXPENSES.  Research and development expenses
increased 105% from $1.9 million for the three months ended January 31, 1999 to
$3.9 million for the three months ended January 31, 2000. This increase was
primarily related to higher compensation expense resulting from higher manpower
levels and increased expenditures for materials purchased for product
development programs. Research and development expenses increased as a percent
of revenues from 21.0% for the three months ended January 31, 1999 to 23.5% for
the current quarter.
 
    SALES AND MARKETING EXPENSES.  Sales and marketing expenses increased 42%
from $1.2 million for the three months ended January 31, 1999 to $1.6 million
for the three months ended January 31, 2000, primarily due to increases in
commissions paid to manufacturers' representatives as a result of increased
sales and increases in the number of direct sales and marketing personnel. Sales
and marketing expenses as a percent of total revenue decreased from 12.9% for
the three months ended January 31, 1999 to 9.9% in the current quarter.
 
    GENERAL AND ADMINISTRATIVE EXPENSES.  General and administrative expenses
increased 101% from $484,000 for the three months ended January 31, 1999 to
$974,000 for the three months ended January 31, 2000. This increase was related
to higher compensation expense resulting from higher manpower levels and
increased expenses for professional services, primarily legal and accounting
services. General and administrative expenses increased as a percent of revenues
from 5.4% for the three months ended January 31, 1999 to 5.9% in the current
quarter.
 
    INTEREST INCOME (EXPENSE), NET.  Interest income, net of interest expense,
of $1.3 million for the three months ended January 31, 2000, compares to net
interest expense of $141,000 for the three months ended January 31, 1999. The
increase in interest income was the result of an increase in cash balances
resulting from the Company's initial public offering of its common stock in
November 1999. Interest expense in the prior year is related primarily to
borrowings of $11.0 million commencing in November of 1998 which was repaid from
the proceeds of the public offering.
 
    AMORTIZATION OF DEFERRED COMPENSATION.  The non-cash charges for
amortization of deferred compensation of $1.8 million for the three months ended
January 31, 2000 and $120,000 for the three months ended January 31, 1999 was
related to the issuance of stock options to employees prior to the Company's
initial public offering in November 1999, and represents the difference between
the deemed value of common stock for accounting purposes and the option exercise
price of these options at the date of grant.
 
                                       14

<PAGE>
COMPARISON OF THE NINE MONTHS ENDED JANUARY 31, 2000 AND JANUARY 31, 1999
 
    REVENUES.  Revenues increased 100% from $23.2 million for the nine months
ended January 31, 1999 to $46.5 million for the nine months ended January 31,
2000. This reflects a 131% increase in sales of optical subsystems from $13.5
million for the nine months ended January 31, 1999 to $31.2 million for the nine
months ended January 31, 2000 and a 58% increase in sales of test systems from
$9.7 million for the nine months ended January 31, 1999 to $15.2 million for the
nine months ended January 31, 2000. Sales of optical subsystems and test systems
represented 67.2% and 32.8%, respectively, of total revenues for the nine months
ended January 31, 2000, and 58.3% and 41.7%, respectively, for the nine months
ended January 31, 1999.
 
    GROSS PROFIT.  Gross profit increased from $13.3 million for the nine months
ended January 31, 1999 to $24.2 million for the nine months ended January 31,
2000. As a percentage of revenues, gross profit decreased from 57.3% for the
nine months ended January 31, 1999 to 52.1% for the nine months ended
January 31, 2000. The lower gross margin reflects lower ASPs for optical
subsystems as a result of increased shipment levels and a higher percentage of
total revenue from the sale of optical subsystems (67.2% vs. 58.3%) which
generally have lower gross margins than test systems.
 
    RESEARCH AND DEVELOPMENT EXPENSES.  Research and development expenses
increased 99% from $5.0 million for the nine months ended January 31, 1999 to
$10.1 million for the nine months ended January 31, 2000. The increase was
primarily related to higher compensation expense resulting from higher manpower
levels and increased expenditures for materials purchased for product
development programs. Research and development expenses as a percent of revenues
remained relatively unchanged at 21.6% for the nine months ended January 31,
2000 as compared to 21.8% for the prior year period.
 
    SALES AND MARKETING EXPENSES.  Sales and marketing expenses increased 77%
from $2.9 million for the nine months ended January 31, 1999 to $5.1 million for
the first nine months ended January 31, 2000. The increase was primarily due to
increases in commissions paid to manufacturers' representatives as a result of
increased sales and increases in the number of direct sales and marketing
personnel. Sales and marketing expenses as a percent of revenues decreased from
12.4% for the nine months ended January 31, 1999 to 10.9% for the current
period.
 
    GENERAL AND ADMINISTRATIVE EXPENSES.  General and administrative expenses
increased 116% from $1.2 million for the nine months ended January 31, 1999 to
$2.6 million for the nine months ended January 31, 2000. This increase was
related to higher compensation expense resulting from higher manpower levels and
increased expenses for professional services, primarily legal and accounting
services. General and administrative expenses increased as a percent of revenues
from 5.2% for the nine months ended January 31, 1999 to 5.6% for the current
period.
 
    INTEREST INCOME (EXPENSE), NET.  Interest income, net of interest expense,
of $1.2 million for the nine months ended January 31, 2000, compares to net
interest expense of $131,000 in the prior year. The increase in interest income
was the result of an increase in cash balances resulting from the Company's
initial public offering in November 1999. Interest expense in the prior year is
related primarily to borrowings of $11.0 million commencing in November of 1998
which was repaid from the proceeds of the public offering in November 1999.
 
    AMORTIZATION OF DEFERRED COMPENSATION.  The non-cash charges for
amortization of deferred compensation of $3.8 million for the nine months ended
January 31, 2000, and $219,000 for the nine months ended January 31, 1999 was
related to the issuance of stock options to employees prior to the Company's
initial public offering in November 1999, and represents the difference between
the deemed value of common stock for accounting purposes and the option exercise
price of these options at the date of grant.
 
                                       15

<PAGE>
LIQUIDITY AND CAPITAL RESOURCES
 
    As of January 31, 2000, our principal sources of liquidity were $134.1
million in cash and short-term investments and $6.5 million available under a
revolving loan facility which matures on October 31, 2003. Borrowings under the
facility are collateralized by substantially all of our assets and bear interest
at our election at the time of borrowing at either the London Interbank Offering
Rate or the bank's prime rate. There were no borrowings under this facility as
of January 31, 2000.
 
    Net cash used by operating activities totaled $4.0 million for the nine
months ended January 31, 2000 and $1.8 million for the prior year period. Cash
used by operations for these periods was primarily due to continued growth in
revenues and net income and an increase in assets and liabilities for working
capital purposes.
 
    Net cash used in investing activities was $72.3 million for the nine months
ended January 31, 2000 and $1.4 million in the prior year period. Net cash used
in investing activities during the current year included $67.8 million in
short-term investments consisting of securities that mature greater than 90 days
from January 31, 2000. Other investing activities consisted primarily of
purchases of equipment and leasehold improvements.
 
    Net cash provided by financing activities was $137.6 million for the nine
months ended January 31, 2000 and $5.5 million for the prior year period. Net
cash provided by financing activities for the current year reflects the sale of
9,305,000 shares at a per share public offering price of $19.00. Of the shares
sold, 8,605,233 shares, with an aggregate offering price of $163.5 million, were
sold by Finisar against which an underwriting discount totaling $11.4 million
was paid. Other expenses of the offering paid by Finisar through January 31,
2000 totaled approximately $1.1 million resulting in a net cash infusion of
approximately $151 million. Post offering, $11.0 million was used to repay debt
while another $2.6 million was used to redeem preferred stock (see PART II, ITEM
2. CHANGES IN SECURITIES AND USE OF PROCEEDS). The net cash provided by
financing activities in the prior year period primarily consisted of net
proceeds of $26.3 million from the sale of preferred stock and $11.0 million in
bank borrowings under a term loan, offset by $31.7 million used to repurchase
shares of our common stock.
 
    The Company considers cash flow from operations and available sources of
liquidity to be adequate to meet business requirements in the foreseeable
future, including planned capital expenditure programs and working capital
requirements.
 
IMPACT OF YEAR 2000
 
    Many currently installed computer systems and software products are coded to
accept only two-digit entries in date code fields. Beginning in the year 2000,
these date code fields will need to accept four-digit entries to distinguish
21st century dates from 20th century dates. Computer programs or hardware that
have date-sensitive software or embedded chips and have not been upgraded to
comply with these "year 2000" requirements may recognize a date using "00" as
the year 1900 rather than the year 2000. This could result in a system failure
or miscalculations causing disruptions of operations, including, among other
things, a temporary inability to process transactions, send invoices or engage
in similar normal business activities.
 
    GENERAL READINESS ASSESSMENT.  We have taken and will continue to take
corrective action to mitigate any significant year 2000 problems with our
internal information systems, production equipment, office equipment, current
and future products and with our suppliers.
 
    Based on our experience to date, we believe that the year 2000 issue will
not have a material impact on our operations or financial results. We have not
incurred material costs and do not expect to incur significant future material
costs in the ongoing work to address the year 2000 problem as it relates to our
systems (as a result of relatively new legacy information systems), products,
production equipment, office equipment and suppliers. However, there can be no
assurance that we will not experience significant business disruptions or loss
of business due to an inability to adequately address the year 2000 issue. In
addition, the inability of our products to properly function in the year 2000
 
                                       16

<PAGE>
could result in increased warranty costs, customer satisfaction issues,
potential lawsuits, and other material costs and liabilities.
 
    We have completed our review of our supplier base of critical components.
Even where assurances are received from our suppliers, there remains a risk that
the failure of their information systems, production equipment or other
suppliers on which they rely could have a material adverse effect on us.
Further, if these suppliers fail to adequately address the year 2000 issue for
the products they provide to us, critical materials, products, and services may
not be delivered in a timely manner and we may not be able to manufacture
sufficient product to meet sales demand. Contingency plans have been developed
in order to mitigate the impact of any year 2000 issues at our suppliers. Such
contingency plans largely consist of identification of alternative sources of
supply.
 
    DISCLAIMER.  The discussion of our efforts and expectations relating to year
2000 compliance are forward-looking statements. Our ability to achieve year 2000
compliance, and the level of incremental costs associated therewith, could be
adversely affected by, among other things, the availability and cost of contract
personnel and external resources, third-party suppliers' ability to modify
proprietary software and unanticipated problems not identified in the ongoing
compliance review.
 
FACTORS THAT MAY AFFECT OUR FUTURE PERFORMANCE
 
    Our future business operations and financial results are subject to various
risks and uncertainties, including those described below.
 
OUR FUTURE REVENUES ARE UNPREDICTABLE, OUR OPERATING RESULTS ARE LIKELY TO
  FLUCTUATE FROM QUARTER TO QUARTER, AND IF WE FAIL TO MEET THE EXPECTATIONS OF
  SECURITIES ANALYSTS OR INVESTORS, OUR STOCK PRICE COULD DECLINE SIGNIFICANTLY
 
    Our quarterly and annual operating results have fluctuated in the past and
are likely to fluctuate significantly in the future due to a variety of factors,
some of which are outside of our control. Accordingly, we believe that
period-to-period comparisons of our results of operations are not meaningful and
should not be relied upon as indications of future performance. Some of the
factors that could cause our quarterly or annual operating results to fluctuate
include market acceptance of our products and the Gigabit Ethernet and Fibre
Channel standards, product development and production, competitive pressures and
customer retention.
 
    We may experience a delay in generating or recognizing revenues for a number
of reasons. Orders at the beginning of each quarter typically do not equal
expected revenues for that quarter and are generally cancelable at any time.
Accordingly, we depend on obtaining orders during a quarter for shipment in that
quarter to achieve our revenue objectives. Failure to ship these products by the
end of a quarter may adversely affect our operating results. Furthermore, our
customer agreements typically provide that the customer may delay scheduled
delivery dates and cancel orders within specified time frames without
significant penalty. Because we base our operating expenses on anticipated
revenue trends and a high percentage of our expenses are fixed in the short
term, any delay in generating or recognizing forecasted revenues could
significantly harm our business.
 
    It is likely that in some future quarters our operating results may fall
below the expectations of securities analysts and investors. In this event, the
trading price of our common stock would significantly decline.
 
OUR SUCCESS IS DEPENDENT ON THE CONTINUED DEVELOPMENT OF THE EMERGING HIGH-SPEED
  LAN, SAN AND EXTENDED NETWORK MARKETS
 
    Our optical subsystem and network performance test system products are used
exclusively in high-speed local area networks, or LANs, storage area networks,
or SANs, and extended networks. Accordingly, widespread adoption of high-speed
LANs, SANs and extended networks is critical to our future success. The markets
for high-speed LANs, SANs and extended networks have only recently
 
                                       17

<PAGE>
begun to develop and are rapidly evolving. Because these markets are new and
evolving, it is difficult to predict their potential size or future growth rate.
Potential end-user customers who have invested substantial resources in their
existing data storage and management systems may be reluctant or slow to adopt a
new approach, like high-speed LANs, SANs or extended networks. Our success in
generating revenue in these emerging markets will depend, among other things, on
the growth of these markets. There is significant uncertainty as to whether
these markets ultimately will develop or, if they do develop, that they will
develop rapidly. If the markets for high-speed LANs, SANs or extended networks
fail to develop or develop more slowly than expected, or if our products do not
achieve widespread market acceptance in these markets, our business would be
significantly harmed.
 
WE WILL FACE CHALLENGES TO OUR BUSINESS, IF OUR TARGET MARKETS ADOPT ALTERNATE
  STANDARDS TO FIBRE CHANNEL AND GIGABIT ETHERNET TECHNOLOGY OR IF OUR PRODUCTS
  FAIL TO COMPLY WITH EVOLVING INDUSTRY STANDARDS AND GOVERNMENT REGULATIONS
 
    We have based our product offerings principally on Fibre Channel and Gigabit
Ethernet standards and our future success is substantially dependent on the
continued market acceptance of these standards. If an alternative technology is
adopted as an industry standard within our target markets, we would have to
dedicate significant time and resources in redesigning our products to meet this
new industry standard. We cannot assure you that we will be successful in
re-designing our products. Our products comprise only a part of an entire
networking system, and we depend on the companies that provide other components
to support industry standards as they evolve. The failure of these companies,
many of which are significantly larger than we are, to support these industry
standards could negatively impact market acceptance of our products. Moreover,
if we introduce a product before an industry standard has become widely
accepted, we may incur significant expenses and losses due to lack of customer
demand, unusable purchased components for these products and the diversion of
our engineers from future product development efforts. In addition, because we
may develop some products prior to the adoption of industry standards, we may
develop products that do not comply with the eventual industry standard. Our
failure to develop products that comply with industry standards would limit our
ability to sell our products. Finally, if new standards evolve, we may not be
able to successfully design and manufacture new products in a timely fashion, if
at all, that meet these new standards.
 
    In the United States, our products must comply with various regulations and
standards defined by the Federal Communications Commission and Underwriters
Laboratories. Internationally, products that we develop also will be required to
comply with standards established by local authorities in various countries.
Failure to comply with existing or evolving standards established by regulatory
authorities or to obtain timely domestic or foreign regulatory approvals or
certificates could significantly harm our business.
 
WE DEPEND ON LARGE PURCHASES FROM A FEW SIGNIFICANT CUSTOMERS, AND ANY LOSS,
  CANCELLATION, REDUCTION OR DELAY IN PURCHASES BY THESE CUSTOMERS COULD HARM
  OUR BUSINESS
 
    A small number of customers have accounted for a significant portion of our
revenues. Our success will depend on our continued ability to develop and manage
relationships with significant customers. Sales to Newbridge Networks
Corporation and EMC Corporation represented 29.1% and 21.6% of our revenues
during the nine month period ended January 31, 2000, and 25.1% and 24.1% of our
revenues for fiscal 1999. Although we are attempting to expand our customer
base, we expect that significant customer concentration will continue for the
foreseeable future.
 
                                       18

<PAGE>
    The markets in which we sell our products are dominated by a relatively
small number of systems manufacturers, thereby reducing the number of our
potential customers. Our dependence on large orders from a relatively small
number of customers makes our relationship with each customer critically
important to our business. We cannot assure you that we will be able to retain
our largest customers, that we will be able to attract additional customers or
that our customers will be successful in selling their products which
incorporate our products. We have in the past experienced delays and reductions
in orders from some of our major customers. In addition, our customers have in
the past and will in the future seek price concessions from us. Further, our
customers may in the future shift their purchases of certain products from us to
our competitors or to joint ventures between these customers and our
competitors. The loss of one or more of our largest customers, any reduction or
delay in sales to these customers, our inability to successfully develop
relationships with additional customers or any further price concessions could
significantly harm our business.
 
BECAUSE WE DO NOT HAVE LONG-TERM CONTRACTS WITH OUR CUSTOMERS, OUR CUSTOMERS MAY
  CEASE PURCHASING OUR PRODUCTS AT ANY TIME IF WE FAIL TO MEET OUR CUSTOMERS'
  NEEDS
 
    We do not have long-term contracts with our customers. As a result, our
agreements with our customers do not provide any assurance of future sales.
Accordingly:
 
    - our customers can stop purchasing our products at any time without
      penalty;
 
    - our customers are free to purchase products from our competitors; and
 
    - our customers are not required to make minimum purchases.
 
    Sales are typically made pursuant to individual purchase orders, often with
extremely short lead times. If we are unable to fulfill these orders in a timely
manner, we will lose sales and customers.
 
OUR MARKET IS SUBJECT TO RAPID TECHNOLOGICAL CHANGE, AND TO COMPETE EFFECTIVELY,
  WE MUST CONTINUALLY INTRODUCE NEW PRODUCTS THAT ACHIEVE MARKET ACCEPTANCE
 
    The markets for our products are characterized by rapid technological
change, frequent new product introductions, changes in customer requirements and
evolving industry standards. We expect that new technologies will emerge as
competition and the need for higher and more cost effective bandwidth increases.
Our future performance will depend on the successful development, introduction
and market acceptance of new and enhanced products that address these changes as
well as current and potential customer requirements. The introduction of new and
enhanced products may cause our customers to defer or cancel orders for existing
products. We have in the past experienced delays in product development and such
delays may occur in the future. Therefore, to the extent customers defer or
cancel orders in the expectation of a new product release or there is any delay
in development or introduction of our new products or enhancements of our
products, our operating results would suffer. We also may not be able to develop
the underlying core technologies necessary to create new products and
enhancements, or to license these technologies from third parties. Product
development delays may result from numerous factors, including:
 
    - changing product specifications and customer requirements;
 
    - difficulties in hiring and retaining necessary technical personnel;
 
    - difficulties in reallocating engineering resources and overcoming resource
      limitations;
 
    - difficulties with contract manufacturers;
 
    - changing market or competitive product requirements; and
 
    - unanticipated engineering complexities.
 
                                       19

<PAGE>
    The development of new, technologically advanced products is a complex and
uncertain process requiring high levels of innovation and highly skilled
engineering and development personnel, as well as the accurate anticipation of
technological and market trends. We cannot assure you that we will be able to
identify, develop, manufacture, market or support new or enhanced products
successfully, if at all, or on a timely basis. Further, we cannot assure you
that our new products will gain market acceptance or that we will be able to
respond effectively to product announcements by competitors, technological
changes or emerging industry standards. Any failure to respond to technological
change would significantly harm our business.
 
CONTINUED COMPETITION IN OUR MARKETS MAY LEAD TO A REDUCTION IN OUR PRICES,
  REVENUES AND MARKET SHARE
 
    The markets for optical subsystems and network performance test systems for
use in LANs, SANs and extended networks are highly competitive. Our current
competitors include a number of domestic and international companies, many of
which have substantially greater financial, technical, marketing, distribution
resources and brand name recognition than we have. We expect that more
companies, including some of our customers, will enter the market for optical
subsystems and network performance test systems. We may not be able to compete
successfully against either current or future competitors. Increased competition
could result in significant price erosion, reduced revenue, lower margins or
loss of market share, any of which would significantly harm our business. For
optical subsystems, we compete primarily with Agilent Technologies, Inc., Cielo
Communications, Inc., International Business Machines Inc. and Vixel
Corporation. For network performance test systems, we compete primarily with
Ancot Corporation, I-Tech Corporation and Xyratex International. Our competitors
continue to introduce improved products with lower prices, and we will have to
do the same to remain competitive. In addition, our current and potential
customers may attempt to integrate their operations by producing their own
optical subsystems and network performance test systems or acquiring one of our
competitors, thereby eliminating the need to purchase our products. Furthermore,
larger companies in other related industries, such as the telecommunications
industry, may develop or acquire technologies and apply their significant
resources, including their distribution channels and brand name recognition, to
capture significant market share.
 
WE EXPECT AVERAGE SELLING PRICES OF OUR PRODUCTS TO DECREASE WHICH MAY REDUCE
  GROSS MARGINS OR REVENUES, AND, AS A RESULT, WE MUST CONTINUE TO REDUCE OUR
  PRODUCT COSTS IN ORDER TO PRICE OUR PRODUCTS COMPETITIVELY
 
    The market for optical subsystems is characterized by declining average
selling prices, or ASPs, resulting from factors such as increased competition,
the introduction of new products and increased unit volumes as manufacturers
continue to deploy network and storage systems. We have in the past experienced
and in the future may experience, substantial period-to-period fluctuations in
operating results due to declining ASPs. We anticipate that ASPs will decrease
in the future in response to product introductions by competitors or us, or by
other factors, including price pressures from significant customers. Therefore,
we must continue to develop and introduce on a timely basis new products that
incorporate features that can be sold at higher ASPs. Failure to do so could
cause our revenues and gross margins to decline, which would significantly harm
our business.
 
    We may be unable to reduce the cost of our products sufficiently to enable
us to compete with others. Our cost reduction efforts may not allow us to keep
pace with competitive pricing pressures or lead to improved gross margins. In
order to remain competitive, we must continually reduce the cost of
manufacturing our products through design and engineering changes. We may not be
successful in redesigning our products or delivering our products to market in a
timely manner. We cannot assure you that any redesign will result in sufficient
cost reductions to allow us to reduce the price of our products to remain
competitive or improve our gross margin.
 
                                       20

<PAGE>
WE ARE SUBJECT TO A PENDING LEGAL PROCEEDING
 
    In April 1999, Methode Electronics, a manufacturer of electronic component
devices, filed a lawsuit against us and another manufacturer alleging that our
optoelectronic products infringe four patents held by Methode. The original
complaint seeks monetary damages and injunctive relief. On October 18, 1999,
Methode filed a motion seeking leave to file an amended complaint. The proposed
amended complaint alleges infringement of a fifth Methode patent and also
alleges that we breached our obligations under a license and supply agreement
with Methode by failing to provide Methode with unspecified information
regarding new technology related to the products licensed under the agreement.
The proposed amended complaint purports to seek compensatory damages of at least
$224,280,000 plus interest for the alleged breach of contract. We believe that
we have strong defenses against Methode's lawsuit, and we have filed a
counterclaim against Methode. We intend to defend Methode's lawsuit and pursue
our counterclaim vigorously. However, the litigation is in the preliminary
stage, and we cannot predict its outcome with certainty. The litigation process
is inherently uncertain and we may not prevail. Patent litigation is
particularly complex and can extend for a protracted time, which can
substantially increase the cost of such litigation. In connection with the
Methode litigation, we have incurred, and expect to continue to incur,
substantial legal fees and expenses. The Methode litigation has also diverted,
and is expected to continue to divert, the efforts and attention of some of our
key management and technical personnel. As a result, our defense of this
litigation, regardless of its eventual outcome, has been, and will likely
continue to be, costly and time consuming. Should the outcome of the litigation
be adverse to us, we could be required to pay significant monetary damages to
Methode and could be enjoined from selling those of our products found to
infringe Methode's patents unless and until we are able to negotiate a license
from Methode. In the event that we obtain a license from Methode, we would
likely be required to make royalty payments with respect to sales of our
products covered by the license. Any such royalty payments would increase our
cost of revenues and reduce our gross profit. If we are required to pay
significant monetary damages, are enjoined from selling any of our products or
are required to make substantial royalty payments pursuant to any such license
agreement, our business would be significantly harmed.
 
OUR CUSTOMERS OFTEN EVALUATE OUR PRODUCTS FOR LONG AND VARIABLE PERIODS WHICH
  CAUSES THE TIMING OF PURCHASES AND OUR RESULTS OF OPERATIONS TO BE
  UNPREDICTABLE
 
    The period of time between our initial contact with a customer and the
receipt of an actual purchase order may span a year or more. During this time,
customers may perform, or require us to perform, extensive and lengthy
evaluation and testing of our products before purchasing and using them in their
equipment. Our customers do not typically share information on the duration or
magnitude of these qualification procedures. The length of these qualification
processes also may vary substantially by product and customer, and, thus, cause
our results of operations to be unpredictable. While our potential customers are
qualifying our products and before they place an order with us, we may incur
substantial sales and marketing expenses and expend significant management
effort. Even after incurring such costs we ultimately may not sell any products
to such potential customers. In addition, these qualification processes often
make it difficult to obtain new customers, as customers are reluctant to expend
the resources necessary to qualify a new supplier if they have one or more
existing qualified sources. Once our products have been qualified, our
agreements with our customers have no minimum purchase commitments. Failure of
our customers to incorporate our products into their systems would significantly
harm our business.
 
                                       21

<PAGE>
WE DEPEND ON CONTRACT MANUFACTURERS FOR SUBSTANTIALLY ALL OF OUR ASSEMBLY
  REQUIREMENTS, AND IF THESE MANUFACTURERS FAIL TO PROVIDE US WITH ADEQUATE
  SUPPLIES OF HIGH-QUALITY PRODUCTS, OUR COMPETITIVE POSITION, REPUTATION AND
  BUSINESS COULD BE HARMED
 
    We currently rely on three contract manufacturers for substantially all of
our assembly requirements. We do not have any long-term contracts with these
manufacturers. We have experienced delays in product shipments from contract
manufacturers in the past, which in turn delayed product shipments to our
customers. We may in the future experience similar delays or other problems,
such as inferior quality and insufficient quantity of product, any of which
could significantly harm our business. We cannot assure you that we will be able
to effectively manage our contract manufacturers or that these manufacturers
will meet our future requirements for timely delivery of products of sufficient
quality and quantity. We intend to regularly introduce new products and product
enhancements, which will require that we rapidly achieve volume production by
coordinating our efforts with those of our suppliers and contract manufacturers.
The inability of our contract manufacturers to provide us with adequate supplies
of high-quality products or the loss of any of our contract manufacturers would
cause a delay in our ability to fulfill orders while we obtain a replacement
manufacturer and would significantly harm our business.
 
    If the demand for our products grows, we will need to increase our material
purchases, contract manufacturing capacity and internal test and quality
assurance functions. Any disruptions in product flow could limit our revenue,
adversely affect our competitive position and reputation and result in
additional costs or cancellation of orders under agreements with our customers.
 
    In addition, we have recently begun to outsource a significant portion of
our contract manufacturing internationally. Additional risks associated with
international contract manufacturing include:
 
    - unexpected changes in regulatory requirements;
 
    - legal uncertainties regarding liability, tariffs and other trade barriers;
 
    - inadequate protection of intellectual property in some countries;
 
    - greater incidence of shipping delays;
 
    - limited oversight of manufacturing operations;
 
    - potential political and economic instability; and
 
    - currency fluctuations.
 
    Any of these factors could significantly impair our ability to source our
contract manufacturing requirements internationally.
 
WE MAY LOSE SALES IF OUR SUPPLIERS FAIL TO MEET OUR NEEDS
 
    We currently purchase several key components used in the manufacture of our
products from single or limited sources. We depend on these sources to meet our
needs. Moreover, we depend on the quality of the products supplied to us over
which we have limited control. We have encountered shortages and delays in
obtaining components in the past and expect to encounter shortages and delays in
the future. If we cannot supply products due to a lack of components, or are
unable to redesign products with other components in a timely manner, our
business will be significantly harmed. We have no long-term or short-term
contracts for any of our components. As a result, a supplier can discontinue
supplying components to us without penalty. If a supplier discontinued supplying
a component, our business may be harmed by the resulting product manufacturing
and delivery delays.
 
                                       22

<PAGE>
    We use rolling forecasts based on anticipated product orders to determine
our component requirements. Lead times for materials and components that we
order vary significantly and depend on factors such as specific supplier
requirements, contract terms and current market demand for particular
components. If we overestimate our component requirements, we may have excess
inventory, which would increase our costs. If we underestimate our component
requirements, we may have inadequate inventory, which could interrupt our
manufacturing and delay delivery of our products to our customers. Any of these
occurrences would significantly harm our business.
 
WE ARE DEPENDENT ON WIDESPREAD MARKET ACCEPTANCE OF TWO PRODUCT FAMILIES, AND
  OUR REVENUES WILL DECLINE IF THE MARKET DOES NOT CONTINUE TO ACCEPT EITHER OF
  THESE PRODUCT FAMILIES
 
    We currently derive substantially all of our revenue from sales of our
optical subsystems and network performance test systems. We expect that revenue
from these products will continue to account for substantially all of our
revenue for the foreseeable future. Accordingly, widespread acceptance of these
products is critical to our future success. If the market does not continue to
accept either our optical subsystems or our network performance test systems,
our revenues will decline significantly. Factors that may affect the market
acceptance of our products include the continued growth of the markets for LANs,
SANs and extended versions of these networks and, in particular, Gigabit
Ethernet and Fibre Channel-based technologies as well as the performance, price
and total cost of ownership of our products and the availability, functionality
and price of competing products and technologies. Many of these factors are
beyond our control. In addition, in order to achieve widespread market
acceptance, we must differentiate ourselves from the competition through product
offerings and brand name recognition. We cannot assure you that we will be
successful in making this differentiation or achieving widespread acceptance of
our products. Failure of our existing or future products to maintain and achieve
widespread levels of market acceptance will significantly impair our revenue
growth.
 
BECAUSE OF INTENSE COMPETITION FOR TECHNICAL PERSONNEL, WE MAY NOT BE ABLE TO
  RECRUIT OR RETAIN NECESSARY PERSONNEL
 
    We believe our future success will depend in large part upon our ability to
attract and retain highly skilled managerial, technical, sales and marketing,
finance and manufacturing personnel. In particular, we will need to increase the
number of technical staff members with experience in high-speed networking
applications as we further develop our product lines. Competition for these
highly skilled employees in our industry is intense. Our failure to attract and
retain these qualified employees could significantly harm our business. The loss
of the services of any of our qualified employees, the inability to attract or
retain qualified personnel in the future or delays in hiring required personnel
could hinder the development and introduction of and negatively impact our
ability to sell our products. In addition, employees may leave our company and
subsequently compete against us. Moreover, companies in our industry whose
employees accept positions with competitors frequently claim that their
competitors have engaged in unfair hiring practices. We may be subject to claims
of this type in the future as we seek to hire qualified personnel and some of
these claims may result in material litigation. We could incur substantial costs
in defending ourselves against these claims, regardless of their merits.
 
CONTINUED RAPID GROWTH WILL STRAIN OUR OPERATIONS AND WILL REQUIRE US TO INCUR
  COSTS TO UPGRADE OUR INFRASTRUCTURE
 
    We have experienced a period of rapid growth, which has placed a significant
strain on our resources. Unless we manage our growth effectively, we may make
mistakes in operating our business, such as inaccurate sales forecasting,
material planning and financial reporting, which may result in fluctuations in
our operating results and cause the price of our stock to decline. We plan to
continue to expand our operations significantly. This anticipated growth will
continue to place a significant strain on our management and operational
resources. In order to manage our growth effectively, we must
 
                                       23

<PAGE>
implement and improve our operational systems, procedures and controls on a
timely basis. If we cannot manage growth effectively, our business could be
significantly harmed.
 
OUR PRODUCTS MAY CONTAIN DEFECTS WHICH MAY CAUSE US TO INCUR SIGNIFICANT COSTS,
  DIVERT OUR ATTENTION FROM PRODUCT DEVELOPMENT EFFORTS AND RESULT IN A LOSS OF
  CUSTOMERS
 
    Networking products frequently contain undetected software or hardware
defects when first introduced or as new versions are released. Our products are
complex and defects may be found from time to time. In addition, our products
are often embedded in or deployed in conjunction with our customers' products
that incorporate a variety of components produced by third parties. As a result,
when problems occur, it may be difficult to identify the source of the problem.
These problems may cause us to incur significant damages or warranty and repair
costs, divert the attention of our engineering personnel from our product
development efforts and cause significant customer relation problems or loss of
customers, all of which would harm our business.
 
OUR FAILURE TO PROTECT OUR INTELLECTUAL PROPERTY MAY SIGNIFICANTLY HARM OUR
  BUSINESS
 
    Our success and ability to compete is dependent in part on our proprietary
technology. We rely on a combination of patent, copyright, trademark and trade
secret laws, as well as confidentiality agreements and licensing arrangements,
to establish and protect our proprietary rights. To date, we have relied
primarily on certain proprietary processes and know-how to protect our
intellectual property. Although we have filed for several patents, some of which
have issued, we cannot assure you that any patents will issue as a result of
pending patent applications or that our issued patents will be upheld. Any
infringement of our proprietary rights could result in significant litigation
costs, and any failure to adequately protect our proprietary rights could result
in our competitors offering similar products, potentially resulting in loss of a
competitive advantage and decreased revenues. Despite our efforts to protect our
proprietary rights, existing patent, copyright, trademark and trade secret laws
afford only limited protection. In addition, the laws of some foreign countries
do not protect our proprietary rights to the same extent as do the laws of the
United States. Attempts may be made to copy or reverse engineer aspects of our
products or to obtain and use information that we regard as proprietary.
Accordingly, we may not be able to prevent misappropriation of our technology or
deter others from developing similar technology. Furthermore, policing the
unauthorized use of our products is difficult. Litigation may be necessary in
the future to enforce our intellectual property rights or to determine the
validity and scope of the proprietary rights of others. This litigation could
result in substantial costs and diversion of resources and could significantly
harm our business.
 
CLAIMS THAT WE INFRINGE THIRD-PARTY INTELLECTUAL PROPERTY RIGHTS COULD RESULT IN
  SIGNIFICANT EXPENSES OR RESTRICTIONS ON OUR ABILITY TO SELL OUR PRODUCTS
 
    The networking industry is characterized by the existence of a large number
of patents and frequent litigation based on allegations of patent infringement.
We are currently involved in a patent infringement lawsuit (see "Risk
Factors--We are subject to a pending legal proceeding"). In addition, from time
to time, other parties may assert patent, copyright, trademark and other
intellectual property rights to technologies and in various jurisdictions that
are important to our business. Any claims asserting that our products infringe
or may infringe proprietary rights of third parties, if determined adversely to
us, could significantly harm our business. Any claims, with or without merit,
could be time-consuming, result in costly litigation, divert the efforts of our
technical and management personnel, cause product shipment delays or require us
to enter into royalty or licensing agreements, any of which could significantly
harm our business. Royalty or licensing agreements, if required, may not be
available on terms acceptable to us, if at all. In addition, our agreements with
our customers typically require us to indemnify our customers from any expense
or liability resulting from claimed infringement of third party intellectual
property rights. In the event a claim against us was successful and we could not
obtain
 
                                       24

<PAGE>
a license to the relevant technology on acceptable terms or license a substitute
technology or redesign our products to avoid infringement, our business would be
significantly harmed.
 
IF WE ARE UNABLE TO EXPAND OUR DIRECT SALES OPERATION AND RESELLER DISTRIBUTION
  CHANNELS OR SUCCESSFULLY MANAGE OUR EXPANDED SALES ORGANIZATION, OUR ABILITY
  TO INCREASE OUR REVENUES WILL BE HARMED
 
    Historically, we have relied primarily on a limited direct sales
organization, supported by third party representatives, to sell our products
domestically and on indirect distribution channels to sell our products
internationally. Our distribution strategy focuses primarily on developing and
expanding our direct sales organization in North America and our indirect
distribution channels internationally. We may not be able to successfully expand
our direct sales organization and the cost of any expansion may exceed the
revenue generated. To the extent that we are successful in expanding our direct
sales organization, we cannot assure you that we will be able to compete
successfully against the significantly larger and well-funded sales and
marketing operations of many of our current or potential competitors. In
addition, if we fail to develop relationships with significant international
resellers or domestic manufacturing representatives, of if these resellers or
representatives are not successful in their sales or marketing efforts, sales of
our products may decrease and our business would be significantly harmed. We
have granted exclusive rights to substantially all of our resellers to sell our
product and to our representatives to market our products in their specified
territories. Our resellers and representatives may not market our products
effectively or continue to devote the resources necessary to provide us with
effective sales, marketing and technical support. Our inability to effectively
manage the expansion of our domestic sales and support staff or maintain
existing or establish new relationships with domestic manufacturer
representatives and international resellers would harm our business.
 
ANY ACQUISITIONS THAT WE UNDERTAKE COULD BE DIFFICULT TO INTEGRATE, DISRUPT OUR
  BUSINESS, DILUTE STOCKHOLDER VALUE AND HARM OUR OPERATING RESULTS
 
    We expect to review opportunities to buy other businesses or technologies
that would complement our current products, expand the breadth of our markets or
enhance our technical capabilities, or that may otherwise offer growth
opportunities. While we have no current agreements or negotiations underway, we
may buy businesses, products or technologies in the future. If we make any
future acquisitions, we could issue stock that would dilute existing
stockholders' percentage ownership, incur substantial debt or assume contingent
liabilities. Our experience in acquiring other business and technologies is
limited. Potential acquisitions also involve numerous risks, including:
 
    - problems assimilating the purchased operations, technologies or products;
 
    - unanticipated costs associated with the acquisition;
 
    - diversion of management's attention from our core business;
 
    - adverse effects on existing business relationships with suppliers and
      customers;
 
    - risks associated with entering markets in which we have no or limited
      prior experience; and
 
    - potential loss of key employees of purchased organizations.
 
    We cannot assure you that we would be successful in overcoming problems
encountered in connection with such acquisitions, and our inability to do so
could significantly harm our business.
 
IF WE ARE UNABLE TO EXPAND OUR INTERNATIONAL OPERATIONS OR MANAGE THEM
  EFFECTIVELY, OUR BUSINESS WOULD BE SIGNIFICANTLY HARMED
 
    Historically, substantially all of our sales have been made to customers in
North America. To address expanding international markets, we have recently
established relationships with distributors in
 
                                       25

<PAGE>
Japan, the United Kingdom and Israel. The growth of our distribution channels
outside of North America will be subject to a number of risks and uncertainties,
including:
 
    - the difficulties and costs of obtaining regulatory approvals for our
      products;
 
    - unexpected changes in regulatory requirements;
 
    - legal uncertainties regarding liability, tariffs and other trade barriers;
 
    - inadequate protection of intellectual property in some countries;
 
    - increased difficulty in collecting delinquent or unpaid accounts;
 
    - potentially adverse tax consequences;
 
    - adoption of different local standards; and
 
    - potential political and economic instability.
 
    Any of these factors could significantly harm our existing international
operations and business or significantly impair our ability to expand into
international markets.
 
    Our international sales currently are U.S. dollar-denominated. As a result,
an increase in the value of the U.S. dollar relative to foreign currencies could
make our products less competitive in international markets. In the future, we
may elect to invoice some of our international customers in local currency.
Doing so will subject us to fluctuations in exchange rates between the U.S.
dollar and the particular local currency.
 
OUR HEADQUARTERS AND MOST OF OUR CONTRACT MANUFACTURERS ARE LOCATED IN NORTHERN
  CALIFORNIA WHERE NATURAL DISASTERS MAY OCCUR
 
    Currently, our corporate headquarters and contract manufacturers are located
in Northern California. Northern California historically has been vulnerable to
certain natural disasters and other risks, such as earthquakes, fires and
floods, which at times have disrupted the local economy and posed physical risks
to our and our manufacturers' property. We presently do not have redundant,
multiple site capacity in the event of a natural disaster. In the event of such
disaster, our business would suffer.
 
SUBSTANTIAL NUMBERS OF SHARES OF OUR COMMON STOCK COULD BECOME AVAILABLE FOR
  SALE IN THE PUBLIC MARKET, WHICH COULD CAUSE THE MARKET PRICE OF OUR STOCK TO
  DECLINE
 
    Sales of substantial amounts of our common stock in the public market or the
appearance that a large number of shares are available for sale, could cause the
market price of our common stock to decline. The number of shares of common
stock available for sale in the public market following our initial public
offering were limited by lock-up agreements under which the holders of
substantially all of our outstanding shares of common stock and options to
purchase common stock will agree not to sell or otherwise dispose of any of
their shares for a period of 180 days after the effective date of the Company's
initial public offering or until May 9, 2000, without the prior written consent
of Merrill Lynch, Pierce, Fenner & Smith Incorporated. Upon the expiration of
these lock-up agreements and assuming the full exercise of all vested options to
purchase common stock outstanding on January 31, 2000, approximately 40,257,829
shares of common stock will become eligible for sale simultaneously. Moreover,
Merrill Lynch may, in its sole discretion and at any time without notice,
release all or any portion of the securities subject to lock-up agreements. In
addition to the adverse effect a price decline could have on holders of common
stock, that decline would likely impede our ability to raise capital through the
issuance of additional shares of common stock or other equity securities.
 
                                       26

<PAGE>
OUR STOCK PRICE MAY BE VOLATILE AND YOU MAY BE UNABLE TO RESELL YOUR SHARES AT
  OR ABOVE YOUR INITIAL PURCHASE PRICE
 
    The trading price of our stock has fluctuated substantially since our
initial public offering. The stock market in general, and the Nasdaq National
Market and stocks of technology companies in particular, have experienced
extreme price and volume fluctuations. This volatility is often unrelated or
disproportionate to the operating performance of these companies. Broad market
and industry factors may adversely affect the market price of our common stock,
regardless of our actual operating performance. In the past, following periods
of volatility in the market price of a company's securities, securities
class-action litigation has often been initiated against these companies. This
litigation, if initiated, could result in substantial costs and a diversion of
management's attention and resources, which would significantly harm our
business.
 

I
TEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.
 
    Finisar's exposure to market risk for changes in interest rates relates
primarily to its investment portfolio. We place our investments with high credit
issuers in short-term securities with maturities ranging from overnight up to 36
months. The average maturity of the portfolio will not exceed 18 months. The
portfolio includes only marketable securities with active secondary or resale
markets to ensure portfolio liquidity. Finisar has no investments denominated in
foreign country currencies and therefore our investments are not subject to
foreign exchange risk.
 
                                       27

<PAGE>

PART II--OTHER INFORMATION
 

ITEM 1. LEGAL PROCEEDINGS
 
    In April 1999, Methode Electronics, a manufacturer of electronic component
devices, filed a lawsuit against us and another manufacturer, Hewlett-Packard
Co., alleging that our optoelectronic products infringe patents held by Methode.
Reference is made to our Form 10-Q report for the quarter ended October 31, 1999
for a description of this pending litigation.
 

ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS
 
    Finisar's first registration statement filed under the Securities Act (Form
S-1 registration statement, Commission File No. 333-87017) was declared
effective by the Commission on November 11, 1999. A total of 9,305,000 shares of
our common stock were registered under the registration statement. The managing
underwriters for the offering were Merrill Lynch, Pierce, Fenner & Smith
Incorporated, J.P. Morgan Securities Inc., Dain Rauscher Incorporated, Morgan
Keegan & Company, Inc. and SoundView Technology Group, Inc.
 
    The offering commenced on November 11, 1999. All 9,305,000 shares were sold
at a per share public offering price of $19.00, including 1,155,000 shares that
were sold upon exercise of the underwriters' overallotment option. Of the shares
sold, 8,605,233 shares, with an aggregate offering price of $163,499,427, were
sold by Finisar, and 699,767 shares, with an aggregate offering price of
$13,295,573, were sold by selling stockholders. An aggregate underwriting
discount of $12,375,650 was paid in connection with the offering, $11,444,960 of
which was paid by Finisar and $930,690 of which was paid by the selling
shareholders. Other expenses of the offering incurred by Finisar are estimated
at $1,500,000.
 
    The net proceeds to Finisar from the sale of the 8,605,233 shares sold by it
in the offering, after deducting the underwriting discount and offering
expenses, were approximately $151 million. To date, $11.0 million of these net
proceeds have been used to repay bank loans and another $2.6 million was used to
redeem the preferred stock that was not converted to common stock in the
offering. The balance of the net proceeds will be used for general corporate
purposes, including capital expenditures and working capital. We may also use a
portion of the net proceeds to acquire or invest in complementary businesses or
products or to obtain the right to any of these types of acquisitions or
investments. Pending such uses, the remaining net proceeds of the offering have
been invested in short-term, investment-grade, interest-bearing securities.
 
    A portion of the net proceeds used to redeem our redeemable preferred stock
was paid to entities affiliated with TA Associates, Inc., a principal
stockholder of Finisar. With the exception of these payments (and working
capital used for salaries and expense reimbursement in the ordinary course of
business), none of the net proceeds of the offering received by Finisar have
been paid, directly or indirectly, to any director or officer of Finisar or any
of their associates, to any persons owning 10 percent or more of any class of
equity securities of Finisar, or to any affiliate of Finisar.
 

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K
 
    a.  Exhibits.
 
       Reference is hereby made to the Exhibit Index commencing on page 29.
 
    b.  Reports on Form 8-K
 
       None.
 
                                       28

<PAGE>

                                   SIGNATURES
 
    Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.
 

<TABLE>
<S>                                       <C>
DATE: March 10, 2000                      FINISAR CORPORATION
                                          (Registrant)
                                          By: /s/ JERRY S. RAWLS
 
                                          Jerry S. Rawls,
                                          PRESIDENT AND CHIEF EXECUTIVE OFFICER
 
                                          By: /s/ STEPHEN K. WORKMAN
 
                                          Stephen K. Workman,
                                          VICE PRESIDENT, FINANCE AND CHIEF FINANCIAL
                                          OFFICER
</TABLE>

 
                                       29

<PAGE>

                               INDEX TO EXHIBITS
 

<TABLE>
<CAPTION>
       EXHIBIT
       NUMBER           DESCRIPTION OF DOCUMENT
       -------          -----------------------
<C>                     <S>
        27.1            Financial Data Schedule
</TABLE>

 
                                       30





<TABLE> <S> <C>


<PAGE>
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          APR-30-2000
<PERIOD-START>                             MAY-01-1999
<PERIOD-END>                               JAN-30-2000
<CASH>                                          66,356
<SECURITIES>                                    67,759
<RECEIVABLES>                                   10,665
<ALLOWANCES>                                     (329)
<INVENTORY>                                     15,087
<CURRENT-ASSETS>                               162,357
<PP&E>                                           7,135
<DEPRECIATION>                                   1,250
<TOTAL-ASSETS>                                 168,705
<CURRENT-LIABILITIES>                           10,236
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       194,313
<OTHER-SE>                                    (35,998)
<TOTAL-LIABILITY-AND-EQUITY>                   168,705
<SALES>                                         46,466
<TOTAL-REVENUES>                                46,466
<CGS>                                           22,252
<TOTAL-COSTS>                                   22,252
<OTHER-EXPENSES>                                21,519
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 447
<INCOME-PRETAX>                                  3,792
<INCOME-TAX>                                     2,583
<INCOME-CONTINUING>                              1,209
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,209
<EPS-BASIC>                                        .03
<EPS-DILUTED>                                      .03
        

</TABLE>