Analysis of angle dependence of GaAs-based RCE photodetectors

Kun Liang; Xiao Hong Yang; Yun Du; Rong Han Wu

doi:10.1117/12.481054

29 August 2002 Analysis of angle dependence of GaAs-based RCE photodetectors

Kun Liang, Xiao Hong Yang, Yun Du, Rong Han Wu

Proceedings Volume 4905, Materials and Devices for Optical and Wireless Communications; (2002) https://doi.org/10.1117/12.481054
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

The theoretical analysis and experimental measurement on the angle dependence of quantum efficiency of GaAs based resonant cavity enhanced (RCE) photodetector is presented. By changing the angle of incoming light, about 40nm wavelength variation of peak quantum efficiency has been experimentally obtained. The peak quantum efficiency and optical bandwidth at different mode corresponding to different angle incidence have been characterized with different absorption dependence on wavelength. The convenient angle tuning of resonant mode will be helpful to relax the strict constraint of RCE photodetector to light source with narrow emission spectrum while especially applied in space optical detections and communications.

Citation Download Citation

Kun Liang, Xiao Hong Yang, Yun Du, and Rong Han Wu "Analysis of angle dependence of GaAs-based RCE photodetectors", Proc. SPIE 4905, Materials and Devices for Optical and Wireless Communications, (29 August 2002); https://doi.org/10.1117/12.481054

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