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Proceedings Article

What limits the power conversion efficiency of GaN-based lasers?

[+] Author Affiliations
Joachim Piprek

NUSOD Institute LLC (United States)

Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 100980Q (February 22, 2017); doi:10.1117/12.2256129
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From Conference Volume 10098

  • Physics and Simulation of Optoelectronic Devices XXV
  • Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa
  • San Francisco, California, United States | January 28, 2017

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. © (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Joachim Piprek
" What limits the power conversion efficiency of GaN-based lasers? ", Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 100980Q (February 22, 2017); doi:10.1117/12.2256129; http://dx.doi.org/10.1117/12.2256129


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