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Proceedings Paper

100W high-brightness multi-emitter laser pump
Author(s): Richard Duesterberg; Lei Xu; Jay A. Skidmore; James Guo; Jane Cheng; Jihua Du; Brad Johnson; David L. Vecht; Nicolas Guerin; Benlih Huang; Dongliang Yin; Peter Cheng; Reddy Raju; Kong Weng Lee; Jason Cai; Victor Rossin; Erik P. Zucker
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Paper Abstract

We report results of a spatially-multiplexed broad area laser diode platform designed for efficient pumping of fiber lasers or direct-diode systems. Optical output power in excess of 100W from a 105μm core, 0.15NA fiber is demonstrated with high coupling efficiency. The compact form factor and low thermal resistance enable tight packing densities needed for kW-class fiber laser systems. Broad area laser diodes have been optimized to reduce near- and far-field performance and prevent blooming without sacrificing other electro-optic parameters. With proper lens optimization this produces ~5% increase in coupling / wall plug efficiency for our design. In addition to performance characteristics, an update on long term reliability testing of 9XX nm broad area laser diode is provided that continues to show no wear out under high acceleration. Under nominal operating conditions of 12W ex-facet power at 25C, the diode mean time to failure (MTTF) is forecast to be ~ 480 kh.

Paper Details

Date Published: 21 February 2011
PDF: 8 pages
Proc. SPIE 7918, High-Power Diode Laser Technology and Applications IX, 79180V (21 February 2011);
Show Author Affiliations
Richard Duesterberg, JDSU (United States)
Lei Xu, JDSU (United States)
Jay A. Skidmore, JDSU (United States)
James Guo, JDSU (United States)
Jane Cheng, JDSU (United States)
Jihua Du, JDSU (United States)
Brad Johnson, JDSU (United States)
David L. Vecht, JDSU (United States)
Nicolas Guerin, JDSU (United States)
Benlih Huang, JDSU (United States)
Dongliang Yin, JDSU (United States)
Peter Cheng, JDSU (United States)
Reddy Raju, JDSU (United States)
Kong Weng Lee, JDSU (United States)
Jason Cai, JDSU (United States)
Victor Rossin, JDSU (United States)
Erik P. Zucker, JDSU (United States)

Published in SPIE Proceedings Vol. 7918:
High-Power Diode Laser Technology and Applications IX
Mark S. Zediker, Editor(s)

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