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Proceedings Paper

What limits the power conversion efficiency of GaN-based lasers?
Author(s): Joachim Piprek
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Paper Abstract

Shuji Nakamura predicted in his Nobel lecture that GaN-based blue laser diodes are the future of solid state lighting. However, GaN-lasers still exhibit less than 40% electrical-to-optical power conversion efficiency while some blue LEDs exceed 80% and some GaAs-based infrared lasers exceed 70%. This talk investigates the reasons behind the efficiency limitation of GaN-based lasers and proposes an improved efficiency analysis method.

Paper Details

Date Published: 22 February 2017
PDF: 6 pages
Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 100980Q (22 February 2017); doi: 10.1117/12.2256129
Show Author Affiliations
Joachim Piprek, NUSOD Institute LLC (United States)

Published in SPIE Proceedings Vol. 10098:
Physics and Simulation of Optoelectronic Devices XXV
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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