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Proceedings Paper

Parallel-cascaded micro-ring resonators waveguide photodetector with flat-top and steep-edge response
Author(s): Yuanfang Qin; Yongqing Huang; Xiaomin Ren; Xiaofeng Duan; Hui Huang; Qi Wang
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Paper Abstract

A novel waveguide photodetector with flat-top and steep-edge response is proposed in the paper. The response is obtained by designing a racetrack resonator following parallel-cascaded two or three micro-ring resonators. Its maximum values of the quantum efficiency in bandpass are 99.8%; 0.5dB, 3dB, and 20dB bandwidth is 0.22nm, 0.39nm, and1.1nm for cascaded double structure and 0.28nm, 0.32nm, and 0.5nm for cascaded triple structure, both of which meet the requirements of WDM system. Compared with similar waveguide photodetectors and RCE-PD, this photodetector has high quantum efficiency, narrow line width and good flat-top and steep-edge response. The structure is compact and conducive to chip-scale integration.

Paper Details

Date Published: 17 November 2010
PDF: 7 pages
Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78472S (17 November 2010); doi: 10.1117/12.870487
Show Author Affiliations
Yuanfang Qin, Beijing Univ. of Posts and Telecommunications (China)
Yongqing Huang, Beijing Univ. of Posts and Telecommunications (China)
Xiaomin Ren, Beijing Univ. of Posts and Telecommunications (China)
Xiaofeng Duan, Beijing Univ. of Posts and Telecommunications (China)
Hui Huang, Beijing Univ. of Posts and Telecommunications (China)
Qi Wang, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 7847:
Optoelectronic Devices and Integration III
Xuping Zhang; Hai Ming; Alan Xiaolong Wang, Editor(s)

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