Chinese Journal of Lasers, Volume. 41, Issue s1, 105009(2014)
Chromatic Dispersion Dynamic Monitoring and Compensation Based in Peak to Average Power Ratio for Coherent Optical Communication Receiving System
Chromatic dispersion (CD) dynamic monitoring and compensation technique by using peak to average power ratio (PAPR) to as a feedback is used in coherent communication system , and this method is insensitive for pattern, polarization mode dispersion and polarization dependent loss. Because the smallest PAPR typically corresponds to the CD that results in the best performance, PAPR is used as feedback signal. We search PAPR minimum through direct search and two step search algorithms in frequency compensation. CD compensation value is the accumulated value in the link. The average errors of two methods to monitor CD are 312 ps/nm and 226 ps/nm. Therefore two search algorithm has lower complexity, and higher sensitivity.
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Zhang Wei, Xi Lixia, Zhao Donghe, Zhang Zhaomin, Bai Shunchang, Tang Xianfeng, Zhang Xiaoguang. Chromatic Dispersion Dynamic Monitoring and Compensation Based in Peak to Average Power Ratio for Coherent Optical Communication Receiving System[J]. Chinese Journal of Lasers, 2014, 41(s1): 105009
Category: Optical communication
Received: Oct. 8, 2013
Accepted: --
Published Online: Jul. 3, 2014
The Author Email: Wei Zhang (zhangweifeifei123@163.com)