新型光纤分布式喇曼放大技术研究进展  

Research progress on novel distributed Raman amplification technologies

作　　者：李晓琳 LI Xiaolin(Patent Examination Cooperation Sichuan Center of the Patent Office,China National Intellectual Property Administration,Chengdu 610213,China)

机构地区：[1]国家知识产权局专利局专利审查协作四川中心,成都610213

出　　处：《激光技术》2025年第2期195-202,共8页Laser Technology

摘　　要：喇曼放大可实现对光信号在光纤链路中的分布式放大,具有高增益、低噪声的优异放大性能,是长距离光纤通信系统中的关键技术之一。为进一步延伸喇曼放大系统光信号传输距离、降低喇曼放大中的相对强度噪声转移、优化并预测喇曼放大系统增益大小、带宽、平坦度等性能参数,多种新型光纤分布式喇曼放大技术得到开发并应用。对近年来新型光纤分布式喇曼放大技术研究进展进行介绍,包括基于超长距离光纤激光器的高阶分布式喇曼放大技术、基于宽带非相干抽运源的低噪声喇曼放大技术及基于机器学习的智能分布式喇曼放大技术,并梳理了光纤分布式喇曼放大技术的基本发展趋势及改进方向。Raman amplification can realize the distributed amplification of optical signals in optical fiber links,and has excellent amplification performance in terms of high gain and low noise,which is one of the key technologies in long-distance optical fiber communication systems.In recent years,in order to further extend the optical signal transmission distance based on Raman amplification,to reduce the relative intensity noise transfer via Raman amplification,to optimize and predict the performance parameters of Raman amplification system such as gain value,gain bandwidth and flatness,etc.,a variety of novel fiber distributed Raman amplification technologies have been developed and applied.The research progress on the novel fiber distributed Raman amplification technology in recent years are reviewed,including high order distributed Raman amplification technology based on ultra-long distance fiber laser,low noise Raman amplification technology based on broadband incoherent pump source and intelligent distributed Raman amplification technology based on machine learning,which can sort out the development trends and improvement directions of fiber optic distributed Raman amplification technology.

关 键 词：光纤放大器 喇曼放大 分布式放大 宽带抽运 机器学习 

分 类 号：TN929.11[电子电信—通信与信息系统]