中国光学（中英文）2025，Vol.18Issue(2)：266-273,8.DOI:10.37188/CO.2024-0170
二阶泵浦种子光对三阶拉曼光纤放大器的影响
The influence of second-order pump seed light on third-order Raman fiber amplifier
摘要
Abstract
As an advanced Raman amplification technology,third-order Raman fiber amplifiers are used in long-haul unrepeated optical transmission due to their higher gain and lower noise figure.But there is cur-rently very limited research on it in China,and the relationship between the pump configuration and the amp-lifier's performance remains unclear.Therefore,this paper analyzes the influence of second-order pump seed light on third-order Raman fiber amplifiers through experiments.First,the feasibility of not using second-or-der pump seed light was qualitatively analyzed.Then,it was experimentally verified that in the absence of second-order pump seed light,the third-order Raman fiber amplifier can still achieve signal light gain but at decreased efficiency.A 47-channel 200 km wavelength division multiplexing transmission system was con-structed.The experimental results show that the third-order Raman fiber amplifier can amplify the signal light without the second-order pump seed light.However,introducing the second-order pump seed light can significantly improve its performance.A second-order pump seed light with only 25 mW can achieve a min-imum signal power gain of 3.7 dB,an average gain of 6 dB,and an average signal-to-noise ratio gain of 0.8 dB.Eliminating second-order pump seed light can reduce costs,but introducing a second-order pump seed light brings significant performance improvements to third-order Raman amplifiers.关键词
三阶拉曼光纤放大器/种子光/受激拉曼散射/自发拉曼散射Key words
third-order Raman fiber amplifier/seed light/stimulated Raman scattering/spontaneous Raman scattering分类
电子信息工程引用本文复制引用
陈佟,刘伟,杨悦,李扬,龙函,吴剑军,项旻,成炬新..二阶泵浦种子光对三阶拉曼光纤放大器的影响[J].中国光学（中英文）,2025,18(2):266-273,8.基金项目
国家电网有限公司科技项目(No.SGZB0000TGJS2301000) Supported by Science and Technology Project of State Grid Corporation of China(No.SGZB0000TGJS 2301000) （No.SGZB0000TGJS2301000）
