论文部分内容阅读
2μm波段高功率单频拉曼光纤放大器(SF-RFA)的性能通常会受到受激布里渊散射(SBS)效应的影响。本文考虑SBS效应下拉曼光纤放大器的速率方程,建立了SBS限制下的SF-RFA理论模型,计算了SF-RFA的能量分布和功率输出。讨论了泵浦功率、光纤长度等因素对光纤放大器中SBS效应和输出功率的影响,总结了如何在提高放大器输出功率的同时有效抑制SBS效应的方法。本文数值模拟结果为实验研究高功率SF-RFA中抑制SBS效应提供一定的指导。
The performance of a 2 μm band high power single frequency Raman fiber amplifier (SF-RFA) is often affected by stimulated Brillouin scattering (SBS) effects. In this paper, we consider the rate equation of the SBS effect Raman fiber amplifier, establish the SF-RFA theoretical model under the SBS constraint, and calculate the SF-RFA energy distribution and power output. The effects of pump power, fiber length and other factors on the SBS effect and output power of the fiber amplifier are discussed. How to effectively suppress the SBS effect while increasing the output power of the amplifier is summarized. The numerical simulation results in this paper provide some guidance for experimentally studying the suppression of SBS in high-power SF-RFA.