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Proceedings Paper

Wavelength-selective photodetectors operating at long wavelength
Author(s): Hui Huang; Xiaomin Ren; Qi Wang; Xingyan Wang; Hailin Cui; Wenjuan Wang; Ang Miao; Yiqun Li; Yongqing Huang
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Paper Abstract

We demonstrate a wavelength-selective photodetector that combines a Fabry-Perot filtering-cavity (FPC) with a taper absorption-cavity (TAC). The taper cavity shows non-resonant effect but exhibits absorption enhancement effect, so that high-speed, high quantum efficiency, wide tuning range and ultra-narrow spectral linewidth can be achieved simultaneously. Device performance was theoretically investigated by including key factors such as taper angle, finite-size diffracting-beam input, and lateral walk-off in the taper cavity. The device was fabricated by bonding a GaAs-based FPC, which can be tuned via thermal-optic effect, with an InP-based TAC. The experiment results of the devices were reported in another paper.

Paper Details

Date Published: 6 October 2006
PDF: 7 pages
Proc. SPIE 6352, Optoelectronic Materials and Devices, 63521E (6 October 2006); doi: 10.1117/12.688384
Show Author Affiliations
Hui Huang, Beijing Univ. of Posts and Telecommunications (China)
Xiaomin Ren, Beijing Univ. of Posts and Telecommunications (China)
Qi Wang, Beijing Univ. of Posts and Telecommunications (China)
Xingyan Wang, Beijing Univ. of Posts and Telecommunications (China)
Hailin Cui, Beijing Univ. of Posts and Telecommunications (China)
Wenjuan Wang, Beijing Univ. of Posts and Telecommunications (China)
Ang Miao, Beijing Univ. of Posts and Telecommunications (China)
Yiqun Li, Beijing Univ. of Posts and Telecommunications (China)
Yongqing Huang, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 6352:
Optoelectronic Materials and Devices
Yong Hee Lee; Fumio Koyama; Yi Luo, Editor(s)

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