Generation of DQPSK format and its performance against polarization mode dispersion  

作　　者：何晶 陈林 文双春 

机构地区：[1]School of Computer and Communication,Hunan University

出　　处：《Chinese Optics Letters》2009年第1期15-18,共4页中国光学快报（英文版）

基　　金：supported by the National"863"Program of China(No.2007AA01Z263);the Hunan Provincial Natural Science Foundation of China(No.06JJ50108);the Open Fund of Key Laboratory of Optical Communication and Lightwave Technologies(Beijing University of Posts Telecommunications,Ministry of Education,P.R.China);the Program for New Century Excellent Talents in University,and the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20040532005).

摘　　要：We propose a novel transmitter and receiver for differential quadrature phase-shift keying （DQPSK） format. The impact of the first-order polarization mode dispersion （PMD） on systems using DQPSK with 100- Gb/s non-return-to-zero （NRZ） or return-to-zero （RZ） format is investigated. Through computing the eye openings of DQPSK formats under different PMD conditions, it is found that NRZ DQPSK, as compared with RZ DQPSK, incurs smaller eye opening due to PMD. Carrier-suppressed return-to-zero （CSRZ） DQPSK format has better tolerance than RZ DQPSK format to PMD for a given bit rate.We propose a novel transmitter and receiver for differential quadrature phase-shift keying （DQPSK） format. The impact of the first-order polarization mode dispersion （PMD） on systems using DQPSK with 100- Gb/s non-return-to-zero （NRZ） or return-to-zero （RZ） format is investigated. Through computing the eye openings of DQPSK formats under different PMD conditions, it is found that NRZ DQPSK, as compared with RZ DQPSK, incurs smaller eye opening due to PMD. Carrier-suppressed return-to-zero （CSRZ） DQPSK format has better tolerance than RZ DQPSK format to PMD for a given bit rate.

关 键 词：Light transmission Phase shift keying POLARIZATION Polarization mode dispersion 

分 类 号：O436.3[机械工程—光学工程]