915nm high-power broad area laser diodes with ultra-small optical confinement based on Asymmetric Decoupled Confinement Heterostructure (ADCH)

Yuji Yamagata; Yumi Yamada; Masanori Muto; Syunta Sato; Ryozaburo Nogawa; Akira Sakamoto; Masayuki Yamaguchi

doi:10.1117/12.2078698

13 March 2015 915nm high-power broad area laser diodes with ultra-small optical confinement based on Asymmetric Decoupled Confinement Heterostructure (ADCH)

Yuji Yamagata, Yumi Yamada, Masanori Muto, Syunta Sato, Ryozaburo Nogawa, Akira Sakamoto, Masayuki Yamaguchi

Author Affiliations +

Proceedings Volume 9348, High-Power Diode Laser Technology and Applications XIII; 93480F (2015) https://doi.org/10.1117/12.2078698
Event: SPIE LASE, 2015, San Francisco, California, United States

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.

Citation Download Citation

Yuji Yamagata, Yumi Yamada, Masanori Muto, Syunta Sato, Ryozaburo Nogawa, Akira Sakamoto, and Masayuki Yamaguchi "915nm high-power broad area laser diodes with ultra-small optical confinement based on Asymmetric Decoupled Confinement Heterostructure (ADCH)", Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 93480F (13 March 2015); https://doi.org/10.1117/12.2078698

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