New Method for Reduction of Carrier Lifetime in Semiconductor Optical Amplifier Using Assist Light
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概要
- 論文の詳細を見る
We propose a novel method for reducing the absorption recovery time in a semiconductor optical amplifier driven under a loss condition for a signal pulse that acts as a saturable absorber. The reduction of the absorption recovery time was successfully demonstrated by stimulated recombination due to CW additional light (assist light) whose wavelength was longer than that of the signal. The injection current and the wavelength of the assist light for the reduction effect were optimized experimentally. The stimulated recombination process is ultrafast and generates little heat since the process does not involve carrier transport in the device. This technique can be applied to ultra high repetition rate optical processing. A minimum absorption recovery time of less than 50 ps was confirmed.
- 社団法人応用物理学会の論文
- 1999-02-28
著者
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MATSUSHIMA Yuichi
KDD Research and Development Laboratories
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Usami M
Tdk Corp. Nagano Jpn
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TSURUSAWA Munefumi
KDD R&D Laboratories
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USAMI Masashi
KDD R&D Laboratories
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Matsushima Yuichi
Kdd R&d Laboratories
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Tsurusawa Munefumi
Kdd R&d Laboratories
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Usami Masashi
KDD R&D Laboratories
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