A Method of Peak Detecting for Nanosecond Pulse in Optical Performance Monitoring System  

作　　者：FENG Lihui ZHANG Qing LIU Xiang ZUO Lin YANG Aiying 

机构地区：[1]School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China [2]National Science and Technology Venture Capital Development Center, Beijing, 100081, China

出　　处：《China Communications》2014年第2期78-82,共5页中国通信（英文版）

基　　金：supported by National 863 Program of China(2013AA013401),P.R.China;National Natural Science Foundation of China under Grant No.61177067,No.61027007,and No.61331010

摘　　要：In optical performance monitoring system,the analog to digital converter is needed to detect the peak of nanosecond pulse and get the signal envelope.A scheme based on a designed anti-aliasing filter and analog to digital converter is proposed to broaden the nanosecond pulse and make it easier for the analog to digital converter to catch the peak of the nanosecond pulse.The experimental results demonstrate that,with the proposed scheme,the optical performance system needs less time to get the recovered eye-diagram of high speed optical data signal,and is robust to phase mismatch in the analog to digital converter circuit.In optical performance monitoring system, the analog to digital converter is needed to detect the peak of nanosecond pulse and get the signal envelope. A scheme based on a designed anti-aliasing filter and analog to digital converter is proposed to broaden the nanosecond pulse and make it easier for the analog to digital converter to catch the peak of the nanosecond pulse. The experimental results demonstrate that, with the proposed scheme, the optical performance system needs less time to get the recovered eye-diagram of high speed optical data signal, and is robust to phase mismatch in the analog to digital converter circuit.

关 键 词：optical performance monitoringsystem （OPM） pulse peak detection anti-aliasing filter analog-to-digital converter 

分 类 号：TN713[电子电信—电路与系统] TM836[电气工程—高电压与绝缘技术]