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6 October 2006 Wavelength-selective photodetectors operating at long wavelength
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Proceedings Volume 6352, Optoelectronic Materials and Devices; 63521E (2006)
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea
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.
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Hui Huang, Xiaomin Ren, Qi Wang, Xingyan Wang, Hailin Cui, Wenjuan Wang, Ang Miao, Yiqun Li, and Yongqing Huang "Wavelength-selective photodetectors operating at long wavelength", Proc. SPIE 6352, Optoelectronic Materials and Devices, 63521E (6 October 2006);

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