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
Full Article | PDF ArticleMore Like This
Hui Huang, Xiaomin Ren, Xingyan Wang, Hailin Cui, Wenjuan Wang, Ang Miao, Yiqun Li, Qi Wang, and Yongqing Huang
Appl. Opt. 45(33) 8448-8453 (2006)
Xu Zhang, Yongqing Huang, Xiaomin Ren, Hui Huang, and Qi Wang
Appl. Opt. 48(35) 6760-6764 (2009)
Wei Wang, Yongqing Huang, Xiaofeng Duan, Jia Tian, Jingwei Guo, and Xiaomin Ren
Appl. Opt. 51(10) 1487-1494 (2012)