SECOND AMENDMENT TO CREDIT AGREEMENT
THIS SECOND AMENDMENT TO CREDIT AGREEMENT (this “ Amendment ”), dated as of
April 16, 2010, is entered into by and among WELLS FARGO CAPITAL FINANCE, LLC, a Delaware
limited liability company formerly known as Wells Fargo Foothill, LLC, as administrative agent (in such capacity,
“ Agent ”) for the Lenders (as defined below), FINISAR CORPORATION , a Delaware corporation (“
Parent ”), OPTIUM CORPORATION, a Delaware corporation, (“ Optium ” and Parent, each individually a “
Borrower ”, and individually and collectively, jointly and severally, the “ Borrowers ”) and the Lenders.
A. Borrowers, the lenders party thereto from time to time (the “ Lenders ”) and Agent, have previously
entered into that certain Credit Agreement dated as of October 2, 2009 (as the same may be modified,
supplemented or amended from time to time, the “ Credit Agreement ”), pursuant to which the Lenders have
made certain loans and financial accommodations available to Borrowers. Terms used herein without definition
shall have the meanings ascribed to them in the Credit Agreement.
B. Borrowers have requested that Agent and the Lenders amend the Credit Agreement which Agent and the
Lenders are willing to do pursuant to the terms and conditions set forth herein.
C. Borrowers are entering into this Amendment with the understanding and agreement that, except as
specifically provided herein, none of Agent’s or any Lender’s rights or remedies as set forth in the Credit
Agreement are being waived or modified by the terms of this Amendment.
NOW, THEREFORE, in consideration of the foregoing and the mutual covenants herein contained, and for
other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties
hereby agree as follows:
1. Amendments to Credit Agreement .
(a) Clause (m) of the definition of “Permitted Indebtedness” set forth in Schedule 1.1 of the Credit