Bragg Wavelength Detuning in GaInAsP/InP Distributed Feedback Lasers with Wirelike Active Regions
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概要
- 論文の詳細を見る
By adopting a relatively large amount (54 nm) of Bragg wavelength detuning from the gain peak wavelength of active regions, temperature dependences of threshold current density and differential quantum efficiency were markedly improved in a GaInAsP/InP distributed feedback laser with wirelike active regions emitting at 1600 nm. A stable single-longitudinal-mode operation with a sub-mode suppression ratio of 51 dB (at a bias current of 2 times the threshold) was obtained at room temperature. Variations of threshold current density and differential quantum efficiency between 10 and 85 °C were reduced to as low as $\pm$19 and $\pm$24%, respectively; hence, the variation of the operating current required for a certain output power in this temperature range was reduced to 1/2 to 1/3 of that without Bragg wavelength detuning.
- Japan Society of Applied Physicsの論文
- 2007-12-25
著者
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PLUMWONGROT Dhanorm
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology
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Maruyama Takeo
Quantum Nanoelectronics Research Center Tokyo Institute Of Technology
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Arai Shigehisa
Quantum Nanoelectronics Research Center Tokyo Institute Of Technology
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Ullah Saeed
Quantum Nanoelectronics Research Center Tokyo Institute Of Technology
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Nishimoto Yoshifumi
Quantum Nanoelectronics Research Center Tokyo Institute Of Technology
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Tamura Yosuke
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
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Kurokawa Munetaka
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
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Nishiyama Nobuhiko
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
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NISHIYAMA Nobuhiko
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
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Maruyama Takeo
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
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