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Proceedings Paper

915nm high-power broad area laser diodes with ultra-small optical confinement based on Asymmetric Decoupled Confinement Heterostructure (ADCH)
Author(s): Yuji Yamagata; Yumi Yamada; Masanori Muto; Syunta Sato; Ryozaburo Nogawa; Akira Sakamoto; Masayuki Yamaguchi
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Paper Abstract

915nm high-power and high-reliability single emitter laser diodes based on Asymmetric Decoupled Confinement Heterostructure (ADCH) are demonstrated. Advantage of ADCH is that it can optimize active layer confinement () and confinement ratio of p- to n-doped layer (p/n), independently, to manage large effective spot size and low internal loss without any penalty in carrier confinement. 4mm-cavity, 100m wide stripe LDs with large effective spot size of 1.5m demonstrates record high Catastrophic-optical-damage (COD) free operation over 42W output. Accelerated aging tests are conducted for 325 devices in total with 1.8 million device hours. Mean time to failure of random failure mode is estimated to be 1.1 million hours for 12W at room temperature.

Paper Details

Date Published: 13 March 2015
PDF: 10 pages
Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 93480F (13 March 2015); doi: 10.1117/12.2078698
Show Author Affiliations
Yuji Yamagata, OPTOENERGY Inc. (Japan)
Yumi Yamada, OPTOENERGY Inc. (Japan)
Masanori Muto, OPTOENERGY Inc. (Japan)
Syunta Sato, OPTOENERGY Inc. (Japan)
Ryozaburo Nogawa, OPTOENERGY Inc (Japan)
Akira Sakamoto, Fujikura Ltd. (Japan)
Masayuki Yamaguchi, OPTOENERGY Inc. (Japan)

Published in SPIE Proceedings Vol. 9348:
High-Power Diode Laser Technology and Applications XIII
Mark S. Zediker, Editor(s)

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