SANTA CLARA, Calif., Aug. 25, 2011 /PRNewswire/ -- Coherent, Inc. (NASDAQ, COHR), a world leader in providing photonics based solutions to the commercial and scientific research markets, today announced that it has completed in full its previously announced $75 million stock buyback program and has been authorized by its Board of Directors to begin a new program to repurchase up to $50 million of its Common Stock in the open market from time to time. Founded in 1966, Coherent, Inc. is a world leader in providing photonics based solutions to the commercial and scientific research markets and part of the Russell 2000. Please direct any questions to Leen Simonet, Chief Financial Officer at 408-764-4161. For more information about Coherent, visit the Company's Web site at http://www.coherent.com/ for product and financial updates. SOURCE Coherent, Inc.