SANTA CLARA, Calif., March 19 -- Luis Spinelli has been appointed executive vice president and CTO of Coherent Inc. Spinelli has more than 25 years of experience in the photonics industry, including almost 19 years at Coherent. Since October 2002, he has served as vice president for corporate research and as chairman of the company’s technical advisory board. He has been instrumental in the development of a number of Coherent’s technologies and products, such as deep ultraviolet frequency-doubled ion lasers for semiconductor manufacturing and telecommunications applications. 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