Improved Switching Performance of Multiple Quantum Well Asymmetric Fabry-Perot Ultrafast All-Optical Switch by Coupled-Cavity Configuration
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概要
- 論文の詳細を見る
We show theoretically that mode splitting of a vertical coupled-cavity is very effective for realizing high contrast and lossless operation in asymmetric Fabry-Perot all-optical ultrafast time-division switches having a multiple quantum well saturable absorber. The merit of the coupled-cavity is mode splitting, which makes pump and signal pulse frequencies independently adjustable without lengthening of cavity; the short cavity feature is indispensable for fast response with high sensitivity. With 7.7 fJ/μm^2, a 0.2 dB internal loss is achieved for a coupled-cavity, while a conventional single cavity has a loss of 17 dB. The maximum extinction ratio for a coupled-cavity reaches 32 dB while that for a single cavity saturates at around 22 dB.
- 社団法人応用物理学会の論文
- 1997-05-15
著者
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Kamiya Takeshi
Department Of Gastroenterology And Metabolism Nagoya City University Graduate School Of Medical Scie
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TSUCHIYA Masahiro
Department of Neurosurgery, Kagoshima University Faculty of Medicine
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Akiyama Tomoyuki
Department Of Child Neurology Okayama University Graduate School Of Medicine And Dentistry
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Akiyama Tomoyuki
Department Of Electronic Engineering University Of Tokyo
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Tsuchiya Masahiro
Department Of Chemistry University Of Tsukuba
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Tsuchiya Masahiro
Department Of Electronic Engineering University Of Tokyo
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Kamiya Takeshi
Department Of Applied Physics Faculty Of Engineering University Of Tokyo:(present Address) Departmen
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Kamiya Takeshi
Department Of Electronic Engineering University Of Tokyo
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Tsuchiya Masahiro
Department of Aging and Geriatric Dentistry, Graduate School of Dentistry, Tohoku University
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