Design and analysis of resonant cavity enhanced photodetector by using InP-based concentric circular subwavelength grating

Tingting Wang; Yongqing Huang; Xiaofeng Duan; Yufeng Shang; Wei Wang; Xiaomin Ren

doi:10.1364/ACP.2011.83082E

Optoelectronic Materials and Devices
Proceedings of SPIE (Optica Publishing Group, 2011),
paper 83082E
•https://doi.org/10.1364/ACP.2011.83082E

Design and analysis of resonant cavity enhanced photodetector by using InP-based concentric circular subwavelength grating

Tingting Wang, Yongqing Huang, Xiaofeng Duan, Yufeng Shang, Wei Wang, and Xiaomin Ren

Asia Communications and Photonics Conference and Exhibition 2011

Shanghai China
13–16 November 2011
ISBN: 978-0-8194-8956-2

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T. Wang, Y. Huang, X. Duan, Y. Shang, W. Wang, and X. Ren, "Design and analysis of resonant cavity enhanced photodetector by using InP-based concentric circular subwavelength grating," in Optoelectronic Materials and Devices, G. Duan, ed., Vol. 8308 of Proceedings of SPIE (Optica Publishing Group, 2011), paper 83082E.

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Abstract

This paper presents the design and analysis of a novel resonant cavity enhanced photodetector which is realized by utilizing concentric circular subwavelength gratings (CC-SWGs) as reflective mirrors. The CC-SWG proposed here can achieve a reflectivity of higher than 99% within a broad wavelength range from 1.37 to 1.63 μm. The calculated peak quantum efficiency of the designed photodetector can achieve 90% at 1.55 μm.

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