High-Sensitivity 5gb/s BPSK Homodyne Detection Using Costas Loop

Hongxiao Shi,Yi Dong,Weilin Xie,Qian Zhou,Jie Qin,Weisheng Hu

2014 Asia Communications and Photonics Conference (ACP)（2014）

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Abstract

A coherent optical receiver is reported using a Costas loop as homodyne optical phased locked loop (OPLL). Sensitivity under 225 photons/bit at Bit Error Rate (BER) of 10−9 is achieved at data rate of 5Gbps.

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Key words

coherent optical receiver,Costas loop,BPSK homodyne detection,homodyne optical phased locked loop,OPLL,bit error rate,BER

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