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High-Power Diode Laser Stacks
Jul 2004
Coherent Inc.Request Info
SANTA CLARA, Calif., July 23 -- Coherent Inc. has released the LightStack product family of high-power diode laser stacks. Featuring the recently released 80W LightStone, which is based on the macro-channel-cooled platform, LightStacks offer excellent power and reliability. LightStack is designed for applications that require kilowatts of continuous wave (CW) or quasi-continuous wave (QCW) laser power in a compact and versatile package.
   LightStack high-power diode laser stacks, based on our aluminum-free active area technology, provide high-power and long-life performance because there's no aluminum, which causes oxidation at the facets -- the leading failure mechanism in AlGaAs diode lasers. Available in wavelengths of 808 nm and 940 nm, and power levels up to 1200 watts CW or 1500 watts QCW, the LightStack features advanced technology, making it the most reliable and high-performance diode laser available today. The design of these devices allows multiple bars to be stacked either horizontally or vertically. Their low beam divergence and narrow emission bandwidth allow more efficient use of the laser energy. And standard wavelength options, matched to solid-state gain media pumping requirements, make these products easy to integrate. LightStack is available in multiple configurations of 1 to 10 bars horizontally or up to 15 bars vertically. Custom options are available upon request.

Coherent diode lasers are MBE-grown and feature an aluminum-free active area design that provides robust high-temperature performance and nearly eliminates dark-line and spot defects, sudden failures and the gradual degradation typically found in MOCVD-grown AlGaAs diode lasers.

For more information, visit:; e-mail: Sri Venkat,

Coherent Inc.
5100 Patrick Henry Drive
Santa Clara, CA 95054 USA
Phone: 408-764-4000
Fax: 408-764-4800


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