Realization of a 10M/100Mbps CMOS monolithic optical receiver

Huangping Yan; Jifang Li; Xiang Cheng; Jing Lu; Yuanqing Huang; Chao Chen

doi:10.1117/12.837983

24 November 2009 Realization of a 10M/100Mbps CMOS monolithic optical receiver

Huangping Yan, Jifang Li, Xiang Cheng, Jing Lu, Yuanqing Huang, Chao Chen

Proceedings Volume 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration; 750910 (2009) https://doi.org/10.1117/12.837983
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

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.

Citation Download Citation

Huangping Yan, Jifang Li, Xiang Cheng, Jing Lu, Yuanqing Huang, and Chao Chen "Realization of a 10M/100Mbps CMOS monolithic optical receiver", Proc. SPIE 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 750910 (24 November 2009); https://doi.org/10.1117/12.837983

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