160-Gb/s NRZ-DQPSK optical transmission system employing QC-LDPC code  

作　　者：李莎 余重秀 康喆 Gerald Farrell 吴强 

机构地区：[1]State key laboratory of Information Photonics and Optical communications,Beijing University of Posts and Telecommunications [2]Photonic Research Centre,Dublin Institute of Technology

出　　处：《Chinese Optics Letters》2014年第1期17-21,共5页中国光学快报（英文版）

基　　金：supported by the National"973"Program of China(Nos.2010CB327605 and 2010CB328304);the Key Grant of Ministry of Education of China(No.109015);the Program for New Century Excellent Talents in University(No.NECT-11-0596);the Beijing Nova Program(No.2011066);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20120005120021);the Fundamental Research Funds for the Central Universities(No.2013RC1202);the China Postdoctoral Science Foundation(No.2012M511826);the Postdoctoral Science Foundation of Guangdong Province(No.244331)

摘　　要：A quasi-cyclic low-density parity check （QC-LDPC） code is constructed by an improved stability of the shortest cycle algorithm for 160-Gb/s non-return zero differential quadrature phase shift keying （NRZ- DQPSK） optical transmission system with the fiber-based optical parametric amplifier （FOPA）. The QC- --14 d LDPC code with stability of the shortest cycle reduces the bit error ratio （BER） to 10 an restrains the error floor effectively.A quasi-cyclic low-density parity check （QC-LDPC） code is constructed by an improved stability of the shortest cycle algorithm for 160-Gb/s non-return zero differential quadrature phase shift keying （NRZ- DQPSK） optical transmission system with the fiber-based optical parametric amplifier （FOPA）. The QC- --14 d LDPC code with stability of the shortest cycle reduces the bit error ratio （BER） to 10 an restrains the error floor effectively.

关 键 词：Forward error correction Light amplifiers Light transmission Optical parametric amplifiers 

分 类 号：TN911.2[电子电信—通信与信息系统] TN929.1[电子电信—信息与通信工程]