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Proceedings Paper

Ultimate high power operation of 9xx-nm single emitter broad stripe laser diodes
Author(s): Yoshikazu Kaifuchi; Yuji Yamagata; Ryozaburo Nogawa; Rintaro Morohashi; Yumi Yamada; Masayuki Yamaguchi
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Paper Abstract

Design optimization of single emitter broad stripe 9xx-nm laser diodes was studied to achieve ultimate high power and high efficiency operation for a use in fiber laser pumping and other industrial applications. We tuned laser vertical layer design and stripe width in terms of optical confinement as well as electrical resistance. As a result, newly designed LDs with 4mm-long cavity and 220 μm-wide stripe successfully demonstrate maximum CW output power as high as 33 W and high efficiency operation of more than 60 % PCE even at 27 W output power. In pulse measurement, the maximum output of 68 W was obtained.

Paper Details

Date Published: 22 February 2017
PDF: 6 pages
Proc. SPIE 10086, High-Power Diode Laser Technology XV, 100860D (22 February 2017); doi: 10.1117/12.2251145
Show Author Affiliations
Yoshikazu Kaifuchi, Fujikura Ltd. (Japan)
Yuji Yamagata, Optoenergy Inc. (Japan)
Ryozaburo Nogawa, Fujikura Ltd. (Japan)
Rintaro Morohashi, Fujikura Ltd. (Japan)
Yumi Yamada, Optoenergy Inc. (Japan)
Masayuki Yamaguchi, Fujikura Ltd. (Japan)


Published in SPIE Proceedings Vol. 10086:
High-Power Diode Laser Technology XV
Mark S. Zediker, Editor(s)

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