Half baudrate electrical clock based demultiplexing scheme for OTDM-DQPSK signal using SOA and optical filter  

作　　者：王慧 孔德明 李岩 张君毅 伍剑 林金桐 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications [2]School of Electronic Engineering,Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2012年第4期4-7,共4页中国光学快报（英文版）

基　　金：supported by the National"973"Program of China(No.2011CB301702);the National Natural Science Foundation of China(Nos.61001121,61006041,60736036,and 60932004);the Specialized Research Fund for the Doctoral Program of Higher Education(No.200800131007);the Fundamental Research Funds for the Central Universities(No.2009CZ05)

摘　　要：A demultiplexing scheme based on semiconductor optical amplifier（SOA）and optical filter for optical time division multiplexing differential quadrature phase shift keying（OTDM-DQPSK）system is proposed and investigated experimentally.With only a common half baudrate electrical clock modulated 33%duty cycle return-to-zero（RZ-33）optical clock signal as pump,this scheme is cost-effective,energy-efficient,and integration-potential.A proof-of-concept experiment is carried out for the demultiplexing of a 2×40-GBd OTDM-DQPSK signal.Error-free performance is demonstrated,and the average power penalty for both channels is about 3 dB.A demultiplexing scheme based on semiconductor optical amplifier（SOA）and optical filter for optical time division multiplexing differential quadrature phase shift keying（OTDM-DQPSK）system is proposed and investigated experimentally.With only a common half baudrate electrical clock modulated 33%duty cycle return-to-zero（RZ-33）optical clock signal as pump,this scheme is cost-effective,energy-efficient,and integration-potential.A proof-of-concept experiment is carried out for the demultiplexing of a 2×40-GBd OTDM-DQPSK signal.Error-free performance is demonstrated,and the average power penalty for both channels is about 3 dB.

关 键 词：DEMULTIPLEXING Optical filters 

分 类 号：TN929.1[电子电信—通信与信息系统] TN911.3[电子电信—信息与通信工程]