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(SYLMAR, CA) March 28, 2006 — The United States Army has awarded Quintessence Photonics Corporation a contract for development, performance testing, and delivery of high power semiconductor lasers in the eye-safe wavelength regime.

QPC was competitively selected for the contract which focuses on spectrally tailored high efficiency high power semiconductor lasers utilizing QPC’s proprietary internal Bragg grating technology. The devices are ideal for long wave pumps for solid-state
lasers in the eye-safe regime because of their high spectral brightness, reduced temperature sensitivity, and precise center wavelength accuracy.

“Our defense and commercial customers have developed an increasing number of compelling applications for laser systems in the eye-safe wavelength regime. We are delighted to receive this contract to enable the broad deployment of systems with
high system efficiency, compact size, and reduced cost” stated Paul Rudy, Vice President of Marketing and Sales at Quintessence.

About Quintessence Photonics Corporation
Quintessence Photonics Corporation is a world leader in the development and commercialization of high brightness, high power semiconductor lasers for the industrial, defense, and medical markets. Founded in the year 2000, Quintessence is
vertically integrated from epitaxy through packaging and performs all critical fabrication processes at its state-of-the-art high-technology facility in the Los Angeles suburb of Sylmar, CA. For more information, please visit www.QPClasers.com or contact George Lintz at (818) 833-4668 or by email at info@QPClasers.com.