基于遥泵技术的超长距光传输系统研究与实验  

Research and Experiment of Ultra Long Distance Optical Transmission System based on Remote Pump Technology

作　　者：陈克峰 吕建新[1] 彭阳[1] 汪俊奇 CHEN Kefeng;LüJianxin;PENG Yang;WANG Junqi(FiberHome Telecommunication Technologies Co.,Ltd.,Wuhan 430205,China;Wuhan Research Institute of Posts and Telecommunications,Wuhan 430074,China)

机构地区：[1]烽火通信科技股份有限公司,武汉430205 [2]武汉邮电科学研究院,武汉430074

出　　处：《光通信研究》2024年第4期46-50,共5页Study on Optical Communications

摘　　要：【目的】针对采用遥泵技术的超长距光传输系统传输距离受限问题,文章提出了100与200 Gbit/s业务混合传输的单跨无中继传输系统,实验在不考虑色散等其他因素的影响下,通过调整系统入纤功率和系统中遥泵增益单元的位置来测试系统最大跨段损耗。【方法】实验中关键放大技术主要为遥泵、掺铒光纤和拉曼放大技术,在传输中应用掺铒光纤放大器、拉曼放大器和遥泵增益单元对系统中光信号进行无中继放大,并通过调整遥泵增益单元的放置位置来进一步提升中继传输距离,实验采用能够更好提升遥泵放大增益的遥泵旁路接入方式。【结果】实验采用3种不同的模块共9个业务波,分别使用200 Gbit/s偏振复用—正交相移键控(PM-QPSK)、100 Gbit/s PM-QPSK和200 Gbit/s偏振复用—16正交幅度调制(PM-16QAM)调制格式,采用损耗为0.17 dB/km的G.654b超低损耗光纤搭建传输实验,并最终实现了总容量为1.5 Tbit/s、跨段损耗达到75 dB的单跨超长距传输。【结论】结果表明,通过设置最佳的入纤功率和调整遥泵增益单元的位置可以提升系统传输距离,实验结果为搭建基于遥泵技术的超长距光传输系统提供了参考价值,对基于遥泵技术的无中继传输发展提供了参考数据。【Objective】Aiming at the limited transmission distance of ultra-long distance optical transmission system using remote pump technology,this paper proposes a single span repeaterless transmission system with mixed transmission of 100 and 200 Gbit/s service.The experiment tests the maximum span loss of the system by adjusting the input power of the system and the position of the remote pump gain unit in the system without considering the influence of other factors such as dispersion.【Methods】The key amplification technologies in the experiment mainly include remote pump amplification technology,Erbium-doped optical fiber amplification technology and Raman amplification technology.In the transmission,Erbium-doped optical fiber amplifier,Raman amplifier and remote pump gain unit are used to carry out non-relay amplification of optical signals in the system,and the relay transmission distance is further improved by adjusting the position of remote pump gain unit.The remote pump bypass access method which can improve the amplification gain of remote pump is used in the experiment.【Results】Three different modules were used in the experiment,with a total of 9 service waves.The modulation formats of 200 Gbit/s Polarization Multiplexed-Quadrature Phase Shift Keying(PM-QPSK),100 Gbit/s PM-QPSK and 200 Gbit/s Polarization Multiplexed-16 Quadrature Amplitude Modulation(PM-16QAM)were used respectively.The transmission experiments were constructed by G.654b ultra-low loss optical fiber with a loss of 0.17 dB/km.Finally,the single-span ultra-long distance transmission with a total capacity of 1.5 Tbit/s and a cross-segment loss of 75 dB is realized.【Conclusion】The results show that the transmission distance of the system can be improved by setting the optimal fiber input power and adjusting the position of the gain unit of the remote pump.The experimental results provide reference value for the construction of the ultra-long distance optical transmission system based on the remote pump technology,and provide refe

关 键 词：超长距光传输系统 遥泵技术 无中继传输 

分 类 号：TN929[电子电信—通信与信息系统]