Theory and Experiments of a Three-Cavity Wavelength-Selective Photodetector
Applied Optics, Vol. 39, Issue 24, pp. 4263-4269 (2000)
http://dx.doi.org/10.1364/AO.39.004263
Acrobat PDF (159 KB)
Abstract
We propose a novel wavelength-selective photodetector with three subcavities, i.e., a filtering cavity, a spacer cavity, and an absorption cavity, for obtaining a narrow spectral response linewidth and a high quantum efficiency simultaneously. A theoretical prediction has been made that a less than 1-nm linewidth and a quantum efficiency as high as 90% are possible. We discuss the effects of the key factors on the performance of this type of photodetector that has been designed and fabricated. A spectral response linewidth of approximately 1.4 nm (FWHM) and an external quantum efficiency higher than 50% have been achieved experimentally. Such devices are promising for wavelength-division multiplexing applications.
© 2000 Optical Society of America
[Optical Society of America ]
OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(230.5160) Optical devices : Photodetectors
Citation
Kai Liu, Yongqing Huang, and Xiaomin Ren, "Theory and Experiments of a Three-Cavity Wavelength-Selective Photodetector," Appl. Opt. 39, 4263-4269 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-24-4263
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