兆兆比特每秒(Tb/s)级相干光OFDM超长距离传输  

Tb/s ultra long haul transmission of coherent optical OFDM

作　　者：杨奇[1] 余少华[1] 

机构地区：[1]武汉邮电科学研究院,光纤通信技术和网络国家重点实验室,武汉430074

出　　处：《科学通报》2014年第16期1497-1507,共11页Chinese Science Bulletin

基　　金：国家重点基础研究发展计划(2010CB328300);国家高技术研究发展计划(2012AA011302;2013AA014101);国家自然科学基金青年科学基金(61201259)资助

摘　　要：对相干光正交频分复用(orthogonal frequency division multiplexing,OFDM)在大容量和超长距离光传输中的应用进行了综合性的阐述.首先,简单地描述了OFDM信号的原理,并对OFDM在光通信中的优势及劣势作了全面的分析.其次,对兆兆比特每秒(Tb/s)级OFDM的发射机、链路及接收机的设计进行了详细的描述,并介绍了迄今为止世界范围内已完成的具有里程碑意义的OFDM超大容量、超长距离光传输实验.最后,对Tb/s级光传输的发展进行了展望.We generally review the application of Tb/s per superchannel coherent optical OFDM （CO-OFDM） in the ultra long haul transmission. This paper gives basics of CO-OFDM, including its main advantages and drawbacks in the optical communication. The implementation of the transmitter, transmission link, and receiver are discussed in detail. We also review some hero experiments of Tb/s per superchannel long haul transmission using CO-OFDM. Following that, some future expectations of such technique are discussed. This paper is prospected to give a brief introduction of CO-OFDM in the terabit/s per superchannel long haul transmission for the readers of interests.

关 键 词：相干光通信 相干光OFDM 大容量传输 超长距离光传输 DFT—S-OFDM 

分 类 号：TN929.1[电子电信—通信与信息系统]