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Proceedings Paper

Realization of a 10M/100Mbps CMOS monolithic optical receiver
Author(s): Huangping Yan; Jifang Li; Xiang Cheng; Jing Lu; Yuanqing Huang; Chao Chen
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Paper Abstract

A monolithic optical receiver fabricated in standard 0.5μm CMOS process is presented. The fingered doublephotodetector with structure of P+/N-well and N-well/P-substrate is designed. Some critical characteristics of doublephotodetector are analyzed in detail. At 2.5V reverse voltage, the maximum dark current is 10 pA. The intrinsic cut-off frequency is above 100MHz. The measured and simulated responsivity is 0.04A/W and 0.03A/W at 850nm wavelength, respectively. In the testing of double-photodetector, the minimum and maximum of rise time is 2.67ns and 7.11ns while the minimum and maximum of fall time is 2.67ns and 31.78ns. A Spice model of DPD is established for the compatibledesign of OEIC. In simulation of pre-amplifier circuit, the pass-band gain is approximate 18.8 KΩ. The lower cut-off frequency is 7KHz while the upper cut-off frequency is 700MHz. The simulated eye diagram of OEIC at 100Mbps is featured of clear trace, wide eye-opening and small zero-crossing distortion. The small signal bandwidth of OEIC is about 54MHz. The eye diagram at 50Mbps and 250Mbps has some distortion due to direct current malajustment. In the point-to-point optical interconnection, the transmission bit rate of 72Mbps is achieved. The monolithic optical receiver can be applied in 10M/100Mbps optical data transmission.

Paper Details

Date Published: 24 November 2009
PDF: 10 pages
Proc. SPIE 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 750910 (24 November 2009); doi: 10.1117/12.837983
Show Author Affiliations
Huangping Yan, Xiamen Univ. (China)
Jifang Li, Xiamen Univ. (China)
Xiang Cheng, Xiamen Univ. (China)
Jing Lu, Xiamen Univ. (China)
Yuanqing Huang, Xiamen Univ. (China)
Chao Chen, Xiamen Univ. (China)

Published in SPIE Proceedings Vol. 7509:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration
Xuping Zhang; Wojtek J. Bock; Xuejun Lu; Hai Ming, Editor(s)

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