4 March 2016 High-brightness laser diode module over 300W with 100μm/Na 0.22 fiber
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High-brightness laser diode module over 300 W with 100 μm core/NA 0.22 fiber has been developed by integrating the several tens of optimally designed single emitter laser diodes in a newly designed package. We employed the Asymmetric Decoupled Confinement Heterostructure (ADCH) and the wide strip width to increase the durability for the catastrophic optical damage. High fiber-coupling efficiency was obtained with the uniquely designed micro-optical system. In addition, low thermal resistance made it possible to operate higher power. As a result, 300 W power was achieved without thermal rollover at 15.5 A with significantly high reliability. The high-brightness modules have a great advantage for high power fiber lasers such as 10 kW and beyond.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yohei Kasai, Yohei Kasai, Shinichi Sakamoto, Shinichi Sakamoto, Yukihiko Takahashi, Yukihiko Takahashi, Ken Katagiri, Ken Katagiri, Yuji Yamagata, Yuji Yamagata, Akira Sakamoto, Akira Sakamoto, Daiichiro Tanaka, Daiichiro Tanaka, } "High-brightness laser diode module over 300W with 100μm/Na 0.22 fiber", Proc. SPIE 9733, High-Power Diode Laser Technology and Applications XIV, 973309 (4 March 2016); doi: 10.1117/12.2211985; https://doi.org/10.1117/12.2211985


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