VCO clock synchronization loop combined with dispersion equalization in optical coherent receivers 被引量：1

VCO clock synchronization loop combined with dispersion equalization in optical coherent receivers

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摘要 In optical coherent receivers,the timing error detector （TED） in synchronization loop can not work normally when signal is distorted by large dispersion.This paper proposes a novel clock synchronization scheme which adds a butterfly-structured adaptive equalizer to the loop to fulfill synchronizations,equalizations and polarization de-multiplexing of two polarization states simultaneously under the control of single voltage-controlled oscillator （VCO）.Simulink simulation demonstrates the rationality and the feasibility of the combined loop with single VCO. In optical coherent receivers,the timing error detector （TED） in synchronization loop can not work normally when signal is distorted by large dispersion.This paper proposes a novel clock synchronization scheme which adds a butterfly-structured adaptive equalizer to the loop to fulfill synchronizations,equalizations and polarization de-multiplexing of two polarization states simultaneously under the control of single voltage-controlled oscillator （VCO）.Simulink simulation demonstrates the rationality and the feasibility of the combined loop with single VCO.

作者 FAN Yang-yang,CHEN Xue,ZHOU Xian,ZHOU Wei-qin,ZHU Hai,LI Zhi-yu Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,China

出处《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2010年第5期122-128,共7页 中国邮电高校学报（英文版）

基金 supported by the Hi-Tech Research and Development Program of China (2009AA01Z221) the National Natural Science Foundation of China (61072053)

关键词 optical coherent receiver SYNCHRONIZATION dispersion equalization optical coherent receiver,synchronization,dispersion equalization

分类号 TN929.1 [电子电信—通信与信息系统]

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