Electronic compensator for 100-Gb/s PDM-CO-OFDM long-haul transmission systems  

作　　者：刘学君 乔耀军 纪越峰 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,the Ministry of Education,Beijing University of Posts and Telecommunications [2]College of Information Science and Engineering,Yanshan University

出　　处：《Chinese Optics Letters》2011年第3期12-16,共5页中国光学快报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China (No.60932004);the National "863" Program of China (Nos.2009AA01Z256, 2009AA01Z253, and 2009AA01A345);the National "973" Program of China (No.2007CB310705)

摘　　要：We study an electronic compensator （EC） as a receiver for a 100-Gb/s polarization division multiplexing coherent optical orthogonal frequency division multiplexing （PDM-CO-OFDM） system without optical dispersion compensation.EC,including electrical dispersion compensation （EDC）,least squares channel estimation and compensation （LSCEC）,and phase compensation （PC）,is used to compensate for chromatic dispersion （CD）,phase noise,polarization mode dispersion （PMD）,and channel impairments,respectively.Simulations show that EC is highly effective in compensating for those impairments and that the performance is close to the theoretical limitation of optical signal-to-noise rate （OSNR）,CD,and PMD.Its robustness against those transmission impairments and fiber nonlinearity are also systematically studied.We study an electronic compensator （EC） as a receiver for a 100-Gb/s polarization division multiplexing coherent optical orthogonal frequency division multiplexing （PDM-CO-OFDM） system without optical dispersion compensation.EC,including electrical dispersion compensation （EDC）,least squares channel estimation and compensation （LSCEC）,and phase compensation （PC）,is used to compensate for chromatic dispersion （CD）,phase noise,polarization mode dispersion （PMD）,and channel impairments,respectively.Simulations show that EC is highly effective in compensating for those impairments and that the performance is close to the theoretical limitation of optical signal-to-noise rate （OSNR）,CD,and PMD.Its robustness against those transmission impairments and fiber nonlinearity are also systematically studied.

关 键 词：Channel estimation Dispersion compensation DISPERSIONS Electromagnetic dispersion Frequency allocation MULTIPLEXING Optical signal processing Orthogonal functions Polarization 

分 类 号：TN919.3[电子电信—通信与信息系统]