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Proceedings Paper

High-power conversion efficiency Al-free diode lasers for pumping high-power solid-state laser systems
Author(s): Manoj Kanskar; Thomas Earles; Troy Goodnough; Eric Stiers; Dan Botez; Luke J. Mawst
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Paper Abstract

Al-free active diode lasers emitting near 970 nm wavelength have been optimized for high electrical-to-optical power conversion efficiency. There are numerous key contributors such as scattering and absorption losses, band alignment, Joule heating, carrier leakage and below-threshold losses that contribute to power loss mechanisms. We report on improvement from 50% to a record-high 73% power conversion efficiency for a 1 cm bar at 10C, resulting from a multi-pronged approach that has been taken to minimize each of the loss mechanisms as to improve the overall power conversion efficiency.

Paper Details

Date Published: 1 April 2005
PDF: 10 pages
Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); doi: 10.1117/12.597097
Show Author Affiliations
Manoj Kanskar, Alfalight, Inc. (United States)
Thomas Earles, Alfalight, Inc. (United States)
Troy Goodnough, Alfalight, Inc. (United States)
Eric Stiers, Alfalight, Inc. (United States)
Dan Botez, Univ. of Wisconsin/Madison (United States)
Luke J. Mawst, Univ. of Wisconsin/Madison (United States)

Published in SPIE Proceedings Vol. 5738:
Novel In-Plane Semiconductor Lasers IV
Carmen Mermelstein; David P. Bour, Editor(s)

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