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

Author

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

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2011

fDate

13-16 Nov. 2011

Firstpage

1

Lastpage

8

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.

Keywords

III-V semiconductors; cavity resonators; diffraction gratings; indium compounds; mirrors; optical design techniques; photodetectors; concentric circular subwavelength grating; reflective mirrors; resonant cavity enhanced photodetector; wavelength 1.37 mum to 1.63 mum; Absorption; Abstracts; Geometry; Substrates; WDM system; concentric circular subwavelength gratings; reflector; resonant cavity photodetecor;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition, 2011. ACP. Asia

Conference_Location

Shanghai

ISSN

2162-108X

Print_ISBN

978-0-8194-8961-6

Type

conf

DOI

10.1117/12.918022

Filename

6210713