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Proceedings Paper

Design of novel tunable resonant cavity enhanced photodetector (RCE-PD)
Author(s): Baoxin Zhao; Yongqing Huang; Xinye Fan; Yingfei Zhou; Xiaofeng Duan; Xiaomin Ren
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Paper Abstract

A novel tunable resonant cavity enhanced photodetector (RCE-PD) is achieved by using an air gap. The optical properties of the photodetector are designed by using the transfer matrix method (TMM). The quantum efficiency (QE) of the tunable RCE-PD is calculated and the optimizing structure is obtained. It is revealed that the peak QE increases to the highest value ( 92%) when the thickness of active layer is 106nm. When the air layer thickness changed 20nm under a low bias voltage, the peak wavelength blue shifts from 1550nm to 1547.9nm and the QE of the device keeps almost invariant at the same time.

Paper Details

Date Published: 5 December 2011
PDF: 8 pages
Proc. SPIE 8198, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 81980F (5 December 2011); doi: 10.1117/12.921318
Show Author Affiliations
Baoxin Zhao, Beijing Univ. of Posts and Telecommunications (China)
Yongqing Huang, Beijing Univ. of Posts and Telecommunications (China)
Xinye Fan, Beijing Univ. of Posts and Telecommunications (China)
Yingfei Zhou, Beijing Univ. of Posts and Telecommunications (China)
Xiaofeng Duan, Beijing Univ. of Posts and Telecommunications (China)
Xiaomin Ren, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 8198:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration

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