Design of Ultrawide-Band, High-Sensitivity p-i-n Protodetectors (Special Issue on Optical/Microwave Interaction Devices, Circuits and Systems)
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概要
- 論文の詳細を見る
We show the design of the bandwidth and the external quantum efficiency (including the coupling efficiency to a single-mode fiber) of p-i-n photodetectors. Based on their design procedures, the performance limits of both conventional surface-illuminated photodetectors and side-illuminated photodetectors are evaluated. We point out that in the ultrawide-band region, optical waveguide photodetectors have great advantages over conventional surface-illuminated photodetectors in terms of the product of the bandwidth and the external quantum efficiency. It is shown that a 100-GHz bandwidth can be achieved with little degradation of the external quantum efficiency by a multimode waveguide photodetector structure. We also present a design concept for overcoming the performance limits of solitary waveguide photodetectors by including an imput tapered optical waveguide.
- 社団法人電子情報通信学会の論文
- 1993-02-25
著者
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KAWANO Kenji
NTT Opto-electronics Laboratories
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KOZEN Atsuo
NTT Opto-electronics Laboratories
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Kato Kazutoshi
Ntt Optical Network System Laboratories
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Hata Susumu
Ntt Opto-electronics Laboratories
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