OSRAM Opto Semiconductors (Santa Clara, CA) offers laser bars with a wavelength of 910 to 980 nm that achieve an optical output of 120W under real-world conditions and a typical efficiency of 70%. The laser bars have a 50% fill factor (the ratio of active width to overall width) and they are ideal for pumping solid-state lasers and direct material processing. OSRAM also plans to produce laser bars with wavelengths of 808 nm and 880 nm, which will deliver an efficiency of 62% at 120W. Structures with a fill factor of 20% are also available and are ideal for optical fiber coupling applications.

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Photonics Tech Briefs Magazine

This article first appeared in the May, 2008 issue of Photonics Tech Briefs Magazine.

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