560 Tbit/s相干光双偏振DFT-s OFDM 32QAM信号10 km单模7芯光纤传输实验  

560 Tbit/s Coherent Optical PDM DFT-s OFDM 32QAM Signal Transmission over 10 km Single-Mode 7 Core Fiber

作　　者：罗鸣[1] 邱英[1] 李响[1] 莫琦[2] 贺志学[1] 刘武[1] 杨奇[1] 余少华[1] LUO Ming QIU Ying LI Xiang MO Qi HE Zhi-xue LIU Wu YANG Qi YU Shaohua(State Key Laboratory of Optical Communication Technologies and Networks, Wuhan Research Institute of Posts Telecommunications ,Wuhan 430074,China FiberHome Telecommunication Technologies Co. ,Ltd. ,Wuhan 430074,China)

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 [2]烽火通信科技股份有限公司,武汉430074

出　　处：《光通信研究》2017年第2期1-4,8,共5页Study on Optical Communications

基　　金：湖北省重大科技创新计划资助项目(2014AAA001)

摘　　要：将空分复用技术与DWDM(密集波分复用)技术相结合,在国内首次实现了560Tbit/s相干光双偏振DFT-s(离散傅里叶变换)OFDM(正交频分复用)32QAM(正交幅度调制)信号传输10km单模7芯光纤的演示实验。系统使用了16个独立光源产生375个25GHz栅格的DWDM信道,单芯传输容量为85.91Tbit/s,7芯传输总容量为601.36Tbit/s。系统使用普通FEC(前向纠错)编码,解码门限为3.8×10-3,编码冗余为7%,系统净传输速率为562.02Tbit/s,净谱效率为59.95bit/s/Hz。In this paper, we combine the Space Division Multiplexing （SDM） and Dense Wavelength Division Multiplexing （DWDM） technologies to experimentally demonstrate 560 Tbit/s coherent optical dual-polarization DFT-s Orthogonal Frequen- cy Division Multiplexing （OFDM） 32 Quadrature Amplitude Modulation（QAM） signal transmission over 10 km single-mode 7 core fiber. The system uses 16 independent laser sources to generate 375 DWDM channels with 25 GHz grid. The channel capacity for single core is 85.91 Tbit/s and the total channel capacity for the 7 core fiber is 601.36 Tbit/s. After excluding the 7% Forward Error Correction（FEC） which aiming at the threshold of 3.8 ×10^-3, the net data rate is 562.02 Tbit /s with spectral efficiency of 59.95 bit/s/Hz.

关 键 词：单模7芯光纤 相干光OFDM 密集波分复用 

分 类 号：TN914[电子电信—通信与信息系统]