MRV Communications (MRVC) DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
(RULE 14a-101)
INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )
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o	Definitive Proxy Statement
x	Definitive Additional Materials
o	Soliciting Material Pursuant to §240.14a-12
MRV COMMUNICATIONS, INC.
(Name of Registrant as Specified In Its Charter)
N/A
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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See the reverse side of this notice to obtain proxy materials and voting instructions. *** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. Meeting Information Meeting Type: For holders as of: Date: Time: Location: 0000059783_1 R2.09.05.010 MRV COMMUNICATIONS, INC. MRV COMMUNICATIONS, INC. 20415 NORDHOFF STREET CHATSWORTH, CA 91311 ATTN: ACCOUNTS PAYABLE Annual Meeting March 29, 2010 May 21, 2010 May 21, 2010 9:00 AM PDT Source Photonics, Inc. 20550 Nordhoff Street Chatsworth, CA 91311

Please Choose One of the Following Voting Methods Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the 12-Digit Control Number available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: How to View Online: Have the 12-Digit Control Number available (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the 12-Digit Control Number (located on the following page) in the subject line. How To Vote 0000059783_2 R2.09.05.010 1. Notice & Proxy Statement 2. Annual Report Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 09, 2010 to facilitate timely delivery.

Voting items 0000059783_3 R2.09.05.010 The Board of Directors recommends that you vote FOR the following: 1. Election of Directors Nominees 01 Joan E. Herman 02 Noam Lotan 03 Charles M. Gillman 04 Michael E. Keane 05 Michael J. McConnell 06 Igal Shidlovsky 07 Kenneth Shubin Stein 08 Philippe Tartavull The Board of Directors recommends you vote FOR the following proposal(s): 2 To ratify the appointment of Ernst & Young LLP as MRV's independent registered public accountant firm for the year ending December 31, 2010. NOTE: Such other business as may properly come before the meeting or any adjournment thereof.

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