摘要
We experimentally transmit eight wavelength-division-multiplexing(WDM)channels,16 quadratic-amplitude-modulation(QAM)signals at 32-GBaud,over 1000 km few mode fiber(FMF).In this experiment,we use WDM,mode division multiplexing,and polarization multiplexing for signal transmission.Through the multiple-input-multiple-output(MIMO)equalization algorithms,we achieve the total line transmission rate of 4.096 Tbit/s.The results prove that the bit error rates(BERs)for the16QAM signals after 1000 km FMF transmission are below the soft-decision forward-error-correction(SD-FEC)threshold of2.4×10^(-2),and the net rate reaches 3.413 Tbit/s.Our proposed system provides a reference for the future development of high-capacity communication.
作者
张宇
王晨
王凯辉
丁俊杰
朱博文
沈磊
张磊
王瑞春
闫长鹍
刘博
余建军
Yu Zhang;Chen Wang;Kaihui Wang;Junjie Ding;Bowen Zhu;Lei Shen;Lei Zhang;Ruichun Wang;Changkun Yan;Bo Liu;Jianjun Yu(School of Information Science and Technology,Fudan University,Shanghai 200433,China;Changfei Optical Fiber and Cable Joint Stock Limited Company,Wuhan 430073,China;Nanjing University of Information Science&Technology,Nanjing 210000,China)
基金
supported by the National Key R&D Program of China(No.2018YFB1800905)
the National Natural Science Foundation of China(Nos.61935005,61720106015,61835002,and 62127802)。
