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Proceedings Paper

Highly reliable high-efficiency wavelength-stabilized 885 nm diode laser bars
Author(s): Paul Leisher; Ling Bao; Hua Huang; Jun Wang; Mark DeVito; Weimin Dong; Mike Grimshaw; David Balsley; Rob Martinsen; Mark DeFranza; Steve Patterson
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Paper Abstract

We report on the progress of highly-reliable, high-efficiency 885-nm diode laser bar arrays. Conduction-cooled hardsoldered bars rated to 60W and 57% conversion efficiency demonstrate >30,000 device hours under 1-sec on, 1-sec off hard pulse conditions failure-free. Microchannel-cooled bars rated to 100W and 62% efficiency demonstrate >100,000 accelerated device hours failure-free. Integrated volume Bragg grating fast axis lenses provide wavelength stabilization at low cost. Vertically stacked arrays (seven bars each) of such configuration are demonstrated with a 0.8 nm FWHM spectral width and rated to 700W, 53% conversion efficiency.

Paper Details

Date Published: 6 May 2009
PDF: 6 pages
Proc. SPIE 7325, Laser Technology for Defense and Security V, 73250R (6 May 2009); doi: 10.1117/12.820872
Show Author Affiliations
Paul Leisher, nLIGHT Corp. (United States)
Ling Bao, nLIGHT Corp. (United States)
Hua Huang, nLIGHT Corp. (United States)
Jun Wang, nLIGHT Corp. (United States)
Mark DeVito, nLIGHT Corp. (United States)
Weimin Dong, nLIGHT Corp. (United States)
Mike Grimshaw, nLIGHT Corp. (United States)
David Balsley, nLIGHT Corp. (United States)
Rob Martinsen, nLIGHT Corp. (United States)
Mark DeFranza, nLIGHT Corp. (United States)
Steve Patterson, nLIGHT Corp. (United States)

Published in SPIE Proceedings Vol. 7325:
Laser Technology for Defense and Security V
Mark Dubinskii; Stephen G. Post, Editor(s)

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