Presentation 2010-12-17
High-power Blue-violet Laser Diodes with Window-structure
Masao Kawaguchi, Hideki Kasugai, Katsuya Samonji, Hiroyuki Hagino, Kenji Orita, Kazuhiko Yamanaka, Masaaki Yuri, Shinichi Takigawa,
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Abstract(in English) High-power GaN-based laser diodes (LDs) are expected as light-source of various high-power applications. The catastrophic-optical-damage (COD) is a major failure mechanism to limit the output power, where optical absorption at a light-emitting facet causes an irreversible damage to the LDs. In this paper, a window structure in InGaN-based LDs to suppress the COD is demonstrated for the first time. The structure is formed by the MOCVD (metal organic chemical vapor deposition) growth over a recess placed besides of the ridge-waveguide. The In composition in the QW is reduced by controlling the local orientation angle at the sidewall of the recess. Thus formed window structure eliminates undesired optical absorption at the cleaved facet so that extremely high output power over 2W in narrow-stripe ridge-waveguide InGaN-based blue-violet LDs is achieved without any CODs.
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Keyword(in English) High-power / GaN / laser diode / window structure
Paper # LQE2010-127
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Conference Information
Committee LQE
Conference Date 2010/12/10(1days)
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Paper Information
Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High-power Blue-violet Laser Diodes with Window-structure
Sub Title (in English)
Keyword(1) High-power
Keyword(2) GaN
Keyword(3) laser diode
Keyword(4) window structure
1st Author's Name Masao Kawaguchi
1st Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation()
2nd Author's Name Hideki Kasugai
2nd Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
3rd Author's Name Katsuya Samonji
3rd Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
4th Author's Name Hiroyuki Hagino
4th Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
5th Author's Name Kenji Orita
5th Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
6th Author's Name Kazuhiko Yamanaka
6th Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
7th Author's Name Masaaki Yuri
7th Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
8th Author's Name Shinichi Takigawa
8th Author's Affiliation Semiconductor Devices Research Center, Semiconductor Company, Panasonic Corporation
Date 2010-12-17
Paper # LQE2010-127
Volume (vol) vol.110
Number (no) 353
Page pp.pp.-
#Pages 4
Date of Issue