A monothically integrated dual-wavelength photodetector with a step-shaped Fabry-Pérot filter

Xinye Fan; Yongqing Huang; Xiaomin Ren; Xiaofeng Duan; Fuquan Hu; Qi Wang; Shiwei Cai

doi:10.1117/12.973659

15 October 2012 A monothically integrated dual-wavelength photodetector with a step-shaped Fabry-Pérot filter

Xinye Fan, Yongqing Huang, Xiaomin Ren, Xiaofeng Duan, Fuquan Hu, Qi Wang, Shiwei Cai

Proceedings Volume 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy; 84191S (2012) https://doi.org/10.1117/12.973659
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

A novel long wavelength photodetector with dual-wavelength response has been designed and fabricated, which can be realized by a step-shaped Fabry-Perot (F-P) filter structure. By using low pressure metal organic chemical vapor deposition (LP-MOCVD), the step-shaped GaAs/AlGaAs distributed Bragg reflectors (DBR) and the InP PIN photodetector are grown on a GaAs substrate, and by employing a thin low temperature buffer layer, the high quality GaAs/InP heteroepitaxy is realized. The structure of the photodetector is optimized by theoretical simulation. This device has a dual-peak distance of 19nm (1558, 1577 nm). The peak quantum efficiency of 8.5% around 1558 nm and 8.6% around 1577 nm, the 3dB bandwidth of 16 GHz are simultaneously obtained.

Citation Download Citation

Xinye Fan, Yongqing Huang, Xiaomin Ren, Xiaofeng Duan, Fuquan Hu, Qi Wang, and Shiwei Cai "A monothically integrated dual-wavelength photodetector with a step-shaped Fabry-Pérot filter", Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 84191S (15 October 2012); https://doi.org/10.1117/12.973659

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