Hideyoshi Horie
Mitsubishi Chemical Corporation
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Publication
Featured researches published by Hideyoshi Horie.
Laser Diodes and LEDs in Industrial, Measurement, Imaging, and Sensors Applications II; Testing, Packaging, and Reliability of Semiconductor Lasers V | 2000
Hideyoshi Horie; Hirotaka Ohta; Yoshitaka Yamamoto; Nobuhiro Arai; Brian Kelly; Toshinari Fujimori; Hideki Gotoh; Masashi Usami; Yuichi Matsushima
We have developed high power and highly reliable single-mode 980 nm laser diodes (LDs) as an excitation light source for erbium doped fiber amplifiers (EDFAs) for practical communication usage. We designed buried-stripe type 980 nm LDs with a weakly index guided structure to maintain a stable single transverse mode even in high power output operation. Regarding the typical initial device characteristics, a kink level of 315 plus or minus 15 mW was realized and the devices showed maximum light output powers of over 550 mW at 25 degrees Celsius and complete thermal rollover characteristics measured at temperatures up to 150 degrees Celsius with 800 mA current injection. In electrostatic discharge (ESD) tests, no significant change of light output and/or voltage versus current characteristics after forward bias discharges typically up to about plus 12 kV and reverse up to -30 kV (equipment limitation) was found. Regarding the reliability, we carried out long-term aging tests at 120 mW light output power at 50 degrees Celsius. In the tests, we confirmed no sudden failure and very stable spectral characteristics. In addition, we obtained similar degradation rates over different device groups. Furthermore, 150 - 250 mW light output aging tests also showed stable operation. The characteristics of these devices make them suitable for practical communication applications.
Archive | 1998
Hideyoshi Horie; Hirotaka Ohta; Toshinari Fujimori
Archive | 2008
Hideyoshi Horie; Kaori Kurihara
Archive | 2007
Hideyoshi Horie
Archive | 2005
Hideyoshi Horie
Archive | 1999
Hideyoshi Horie; Hirotaka Ohta; Toshinari Fujimori
Archive | 1995
Hideyoshi Horie; Toshinari Fujimori; Satoru Nagao; Nobuyuki Hosoi; Hideki Goto
Archive | 2008
Hideyoshi Horie; Takashi Fukada
Archive | 1997
Hideyoshi Horie; Toshinari Fujimori; Satoru Nagao; Hideki Gotoh
Archive | 2008
Hideyoshi Horie; Kaori Kurihara
Collaboration
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National Institute of Advanced Industrial Science and Technology
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