Study of FSK/IM orthogonal modulation system with optical Manchester-coded payload  

作　　者：周锐 忻向军 张琦 赵堃 赵同刚 余重秀 

机构地区：[1]Institute of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2010年第5期464-467,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.60677004);the National"863"Program of China(Nos.2007AA03Z447 and 2009AA01Z220);the Teaching and Scientific Research Foundation for the Returned Overseas Chinese Scholars form the Ministry of Education of China;the Program for New Century Excellent Talents in University of China(No.NECT-07-0111).

摘　　要：We study the performance of an orthogonal modulation system with frequency-shift keying（FSK） label and optical Manchester-coded（MC） payload.Simulation result shows that by introducing an optical MC payload,the available extinction ratio（ER） value of a FSK and intensity modulation（IM） orthogonal modulation system can be improved from 5 to 9 dB for system optimization,exhibiting great advantages over the traditional non-return-to-zero（NRZ） payload.Besides,the bit error rate（BER） characteristics of both label and payload show a more remarkable advantage than that of NRZ coding,verifying itself as a perfect candidate for the payload coding method in orthogonal modulation systems.We study the performance of an orthogonal modulation system with frequency-shift keying（FSK） label and optical Manchester-coded（MC） payload.Simulation result shows that by introducing an optical MC payload,the available extinction ratio（ER） value of a FSK and intensity modulation（IM） orthogonal modulation system can be improved from 5 to 9 dB for system optimization,exhibiting great advantages over the traditional non-return-to-zero（NRZ） payload.Besides,the bit error rate（BER） characteristics of both label and payload show a more remarkable advantage than that of NRZ coding,verifying itself as a perfect candidate for the payload coding method in orthogonal modulation systems.

关 键 词：Bit error rate Labels Optical communication 

分 类 号：TN761[电子电信—电路与系统]