Mr. Kyohei Yoshida Profile

Kyohei Yoshida

at Fujikura Ltd

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Publications (2)

Proceedings Article | 2 March 2020 Paper

Highly efficient 9xx-nm band single emitter laser diodes optimized for high output power operation

Yuji Yamagata, Yoshikazu Kaifuchi, Ryozaburo Nogawa, Kyohei Yoshida, Rintaro Morohashi, Masayuki Yamaguchi

Proceedings Volume 11262, 1126203 (2020) https://doi.org/10.1117/12.2545721

KEYWORDS: Resistance, Waveguides, Semiconductor lasers, Doping, Absorption, Reliability, Failure analysis, Electroluminescence, Structural design, Fiber lasers

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Proceedings Article | 4 March 2019 Presentation + Paper

Enhanced power conversion efficiency in 900-nm range single emitter broad stripe laser diodes maintaining high power operability

Yoshikazu Kaifuchi, Kyohei Yoshida, Yuji Yamagata, Ryozaburo Nogawa, Yumi Yamada, Masayuki Yamaguchi

Proceedings Volume 10900, 109000F (2019) https://doi.org/10.1117/12.2509184

KEYWORDS: Semiconductor lasers, High power lasers, Active optics, Fiber lasers, Laser systems engineering

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