单载波400 Gbit/s无中继超长距传输实验研究  

The Research on 400 Gbit/s Single-carrier Unrepeatered Ultra Long Haul Transmission

作　　者：张勇生 张林 吴剑军 ZHANG Yong-sheng;ZHANG Lin;WU Jian-Jun(Information and Communication Branch of Inner Mongolia East Electric Power Co.,Ltd.,Hohhot 012000,China;Economic and Technological Research Institute of Inner Mongolia East Electric Power Co.,Ltd.,Harbin 150000,China;Accelink Technologies Co.,Ltd.,Wuhan 430205,China)

机构地区：[1]国网内蒙古东部电力有限公司信息通信分公司,呼和浩特012000 [2]国网内蒙古东部电力有限公司经济技术研究院,哈尔滨150000 [3]武汉光迅科技股份有限公司,武汉430205

出　　处：《光通信研究》2021年第3期25-28,共4页Study on Optical Communications

摘　　要：针对单载波传输速率不断提升对超长距无中继通信的传输跨距带来巨大挑战的问题,文章主要采用高阶泵浦前后向遥泵放大技术,结合G.654E超低损、大有效面积光纤及子载波频分多路复用技术,通过优化高阶泵浦功率、远程增益单元性能、线路放置位置和信号波传输波长等光路子系统参数,实现了单跨距501.18 km(78.68 dB)单载波400 Gbit/s无中继单纤芯超长距离传输。With the continuous improvement of single carrier transmission rate, it is great challenging to increase the transmission distance in unrepeatered link. This paper demonstrates a unrepeatered transmission of single-carrier 400 Gbit/s over 501.18 km with 78.68 dB span loss using single fiber for the first time. The technology of high-order pumps, forward and backward remote optically pumped amplifier, sub-carrier frequency-division multiplexing and ultra-low & large effective area fiber are used in this experiment. The transmission wavelength, the power of the high-order pump and the location of the remote gain unit are also optimized in this work.

关 键 词：高速率通信 无中继传输 高阶泵浦 远程放大 

分 类 号：TN929.11[电子电信—通信与信息系统]