Multiple-impairment monitoring for optical duobinary system based on delay-tap asynchronous sampling 被引量：1

Multiple-impairment monitoring for optical duobinary system based on delay-tap asynchronous sampling

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摘要 A technique using artificial neural networks trained with parameters derived from delay tap plots for optical performance monitoring in 40 Gbit/s duobinary system is demonstrated. Firstly, the optical signal is delay tap sampled to obtain two-dimensional histogram, known as delay tap plots. Secondly, the features of delay tap plots are extracted to train the feed forward, three-layer preceptor structure artificial neural networks. Finally, the outputs of trained neural network are used to monitor optical duobinary signal impairments. Simulation of optical signal noise ratio （ OSNR）, chromatic dispersion （CD）, and differential group delay （DGD） monitoring in 40 Gbit/s optical duo- binary system is presented. The proposed monitoring scheme can accurately identify simultaneous impairments without requiring synchronous sampling or data clock recovery. The proposed technique is simple, cost-effective and suitable for in-service distributed OPM. A technique using artificial neural networks trained with parameters derived from delay tap plots for optical performance monitoring in 40 Gbit/s duobinary system is demonstrated. Firstly, the optical signal is delay tap sampled to obtain two-dimensional histogram, known as delay tap plots. Secondly, the features of delay tap plots are extracted to train the feed forward, three-layer preceptor structure artificial neural networks. Finally, the outputs of trained neural network are used to monitor optical duobinary signal impairments. Simulation of optical signal noise ratio （ OSNR）, chromatic dispersion （CD）, and differential group delay （DGD） monitoring in 40 Gbit/s optical duo- binary system is presented. The proposed monitoring scheme can accurately identify simultaneous impairments without requiring synchronous sampling or data clock recovery. The proposed technique is simple, cost-effective and suitable for in-service distributed OPM.

作者赖俊森杨爱英孙雨南

机构地区 School of Optoelectronic China Academy of Telecommunication Research of MIIT

出处《Journal of Beijing Institute of Technology》 EI CAS 2013年第2期246-249,共4页 北京理工大学学报（英文版）

基金 Supported by the National Natural Science Foundation of China (60978007 61027007 61177067)

关键词 optical performance monitoring （OPM） duobinary modulation delay tap sampling optical performance monitoring （OPM） duobinary modulation delay tap sampling

分类号 TN929.11 [电子电信—通信与信息系统]

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