EXHIBIT 32.1

                CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT
                TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Jerry S. Rawls, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly
Report of Finisar Corporation (the "Company") on Form 10-Q for the quarter ended
January 31, 2004 (the "Report") fully complies with the requirements of Section
13(a) of the Securities Exchange Act of 1934 and that the information contained
in the Report fairly presents, in all material respects, the financial condition
and results of operations of the Company.


Dated: March 10, 2004                          /s/ Jerry S. Rawls
                                               -----------------------
                                               Jerry S. Rawls
                                               Chief Executive Officer


A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to Finisar Corporation and will be
retained by Finisar Corporation and furnished to the Securities and Exchange
Commission or its staff upon request.