High-Efficiency InGaAs/AlGaAs Quantum Well Distributed Bragg Reflector Laser with Curved Grating
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概要
- 論文の詳細を見る
An InGaAs quantum well curved distributed Bragg reflector (DBR) laser designed for high efficiency and high wavelength purity operation is demonstrated. The laser was fabricated by a simple process without regrowth. In order to improve the performance, the quantum well was selectively disordered in the DBR grating region to accomplish low absorption loss. As a result of optimization of the curved DBR grating and low-reflection coating on the facet mirror, single-mode lasing with an external differential quantum efficiency as high as 0.74 and a side mode suppression ratio of 52 dB was achieved. Low noise characteristic of only 0.7 dB above the standard quantum limit was obtained.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-08-15
著者
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Shimada Naoyuki
Department Of Biology Faculty Of Science Shizuoka University
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UEMUKAI Masahiro
Department of Electronic Engineering, Graduate School of Engineering, Osaka University
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KITANO Kazutoshi
Department of Electronic Engineering, Graduate School of Engineering, Osaka University
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Suhara Toshiaki
Department Of Elect Ronics Graduate School Of Engineering Osaka University
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Kitano Kazutoshi
Department of Electronic Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan
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Uemukai Masahiro
Department of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Suhara Toshiaki
Department of Electronic Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan
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Shimada Naoyuki
Department of Electronic Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan
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