Fastest growing semiconductor laser company will expand product offering
with leading fiber products from LIEKKI

VANCOUVER, Wash., and LOHJA, Finland, October 8, 2007 - nLIGHT Corporation, a leading manufacturer of high-power semiconductor lasers, today announced the signing of a definitive agreement to acquire leading specialty fiber manufacturer LIEKKI Corporation based in Lohja, Finland. Further terms of the acquisition were not disclosed.

"This is a very important acquisition that integrates core technology for the rapidly growing markets for semiconductor and fiber lasers," stated Scott Keeney, nLIGHT's president and CEO. "Combining the nLIGHT and LIEKKI product portfolios will bring compelling solutions to our industry. We highly value the LIEKKI team and their operational excellence."

"The combination of our technology and teams will provide customers with a complete supply chain from semiconductor lasers and fibers to optical modules," commented William Willson, Managing Director of the Fiber Division. "nLIGHT is the fastest growing company in the semiconductor laser market and LIEKKI will bring its experience in fibers and modules; a unique, patented Direct Nanoparticle Deposition (DND) fiber technology process; and a specialized manufacturing facility, which scales efficiently in this growing market."

The transaction is subject to customary closing conditions and is expected to be complete in the fourth quarter of 2007.

About nLIGHT

nLIGHT is a privately held company established in 2000 that designs and manufactures industry leading high-power semiconductor lasers. nLIGHT delivers a broad range of product solutions to customers in industrial, medical, defense and consumer markets. nLIGHT has state-of-the-art manufacturing facilities in Vancouver, Washington, Hillsboro, Oregon, and Shanghai, China. nLIGHT has grown an average of 70% per year for the past five years and was named the fastest growing technology company in Washington State in Deloitte & Touche USA LLP's Technology Fast 50 program for 2007. For more information, please visit:

About LIEKKI Corporation

LIEKKI Corporation designs, manufactures and markets specialty optical fibers and fiber subassemblies (optical engine modules) for fiber amplifiers and lasers using its proprietary Direct Nanoparticle Deposition technology. LIEKKI products are used in industrial, aerospace, medical, military and telecom applications. For more information, please visit:

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