High-power conversion efficiency Al-free diode lasers for pumping high-power solid-state laser systems

Manoj Kanskar; Thomas Earles; Troy Goodnough; Eric Stiers; Dan Botez; Luke J. Mawst

doi:10.1117/12.597097

1 April 2005 High-power conversion efficiency Al-free diode lasers for pumping high-power solid-state laser systems

Manoj Kanskar, Thomas Earles, Troy Goodnough, Eric Stiers, Dan Botez, Luke J. Mawst

Proceedings Volume 5738, Novel In-Plane Semiconductor Lasers IV; (2005) https://doi.org/10.1117/12.597097
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

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.

Citation Download Citation

Manoj Kanskar, Thomas Earles, Troy Goodnough, Eric Stiers, Dan Botez, and Luke J. Mawst "High-power conversion efficiency Al-free diode lasers for pumping high-power solid-state laser systems", Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); https://doi.org/10.1117/12.597097

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