Coupled-cavity resonant photodetectors for high-performance wavelength demultiplexing applications

被引：13
作者：
Hu, SY
Hegblom, ER
Coldren, LA
机构：
[1] Dept. of Elec. and Comp. Engineering, Univ. of California, Santa Barbara, Santa Barbara
来源：
APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 02期
关键词：
D O I：
10.1063/1.119523
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A new coupled-cavity resonant photodetector structure is studied to provide a flat-topped passband with steep skirts in the photoresponse. The idea is to add a low-loss cavity that is optically coupled to the absorptive cavity via an intermediate mirror. Experimental reflection spectra confirm this coupling effect. Modeling for an InGaAs/GaAs/AlGaAs design reveals that this new coupled-cavity structure will be able to show a 22 dB channel rejection ratio even when the optical channel spacing is as narrow as 2 nm. In addition, the design and processing tolerances for cavity-mode adjustment are also addressed. (C) 1997 American Institute of Physics.
引用
收藏
页码：178 / 180
页数：3
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