一种提升10 Gb/s超长距光传输系统入纤光功率的方法  

Method of increasing the input power of 10 Gb/s ultra-long distance optical transmission system

作　　者：龙函 朱一峰[2] 刘丽娜 孙淑娟 项旻 熊伟 徐泽峰 LONG Han;ZHU Yifeng;LIU Li'na;SUN Shujuan;XIANG Min;XIONG Wei;XU Zefeng(Accelink Technologies Co.Ltd.,Wuhan 430074,China;CSG EHV Power Transmission Company,Guangzhou 510623,China;Central Southern China Electric Power Design Institute Co.Ltd.,of China Power Engineering Consulting Group,Wuhan 430071,China)

机构地区：[1]武汉光迅科技股份有限公司,武汉430074 [2]中国南方电网超高压输电公司,广州510623 [3]中国电力工程顾问集团中南电力设计院有限公司,武汉430071

出　　处：《光通信技术》2019年第11期18-20,共3页Optical Communication Technology

摘　　要：针对10 Gb/s超长距光传输系统入纤光功率受限的问题,提出了一种抑制受激布里渊散射(SBS)、提高入纤光功率的方法。该方法将对激光器低频扰动和对信号光进行相位调制这2种提高SBS阈值的方式进行了有效地结合,并进行了对比实验。实验结果表明:该方法可有效地提高SBS阈值,将10 Gb/s超长距光传输系统入纤光功率由原来的12 dBm、17 dBm提升到19 dBm,从而进一步延长了系统的无中继传输距离。Aiming at the problem of limited input power of 10 Gb/s ultra-long distance optical transmission system,a method to suppress stimulated Brillouin scattering(SBS)and improve input power is proposed.This method effectively combines the two ways of improving SBS threshold,which are laser low frequency disturbance and signal light phase modulation,and carries out comparative experiments.The experimental results show that this method can effectively improve the SBS threshold and increase the input power of 10 Gb/s ultra-long distance optical transmission system from 12 dBm and 17 dBm to 19 dBm,thus further extending the system's relay-free transmission distance.

关 键 词：10 Gb/s 超长距光传输 受激布里渊散射 入纤光功率 

分 类 号：TN914[电子电信—通信与信息系统]