1.3 μm Distributed Feedback Laser with Half-Etching Mesa and High-Density Quantum Dots
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概要
- 論文の詳細を見る
We propose a quantum dot laser with a new distributed feedback (DFB) structure, namely, a half-etching mesa (HEM) DFB laser that employs a vertical grating structure and requires no regrowth process. The features of the HEM structure are a low coupling coefficient and a low threshold current achieved by suppressing the large scattering loss in the quantum dots (QDs) active layer. This structure is realized by etching vertical gratings only as far as the center of the active layer. We demonstrated fundamental mode control for a 1.3 μm emission with a low coupling coefficient of 22 cm-1 and a threshold current of 35 mA by using high-density and high-uniformity QDs.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-05-25
著者
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Komori Kazuhiro
National Institute Of Advanced Industrial Science And Technology (aist)
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SUGAYA Takeyoshi
National Institute of Advanced Industrial Science and Technology
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Amano Takeru
National Institute Of Advanced Industrial Science And Technology (aist)
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Akimoto Ryoichi
National Institute Of Advanced Industrial Science And Technology (aist)
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GOSHIMA Keishiro
National Institute of Advanced Industrial Science and Technology (AIST)
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AKITA Kazumichi
National Institute of Advanced Industrial Science and Technology (AIST)
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Sugaya Takeyoshi
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Goshima Keishiro
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Mori Masahiko
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Akimoto Ryoichi
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Komori Kazuhiro
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Akita Kazumichi
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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MORI Masahiko
National Institute of Advanced Industrial Science and Technology
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