摘要
掺镱光纤放大器(YDFA)具有掺杂离子能级结构简单、转化效率高等优点,目前已被广泛应用于工业加工、雷达探测、医疗与通信等领域.然而掺镱光纤放大器的性能受到多种因素的影响,特别是在重吸收效应的影响下,信号光功率会随着增益光纤长度的增加呈现先增大后减小的现象.建立了掺镱光纤放大器的仿真模型,对信号光、泵浦光和ASE噪声在掺镱光纤中的放大过程进行了仿真计算,同时对掺镱光纤放大器性能的影响因素展开研究工作,探讨了泵浦方式、泵浦功率、信号光峰值波长、增益光纤类型与放大性能之间的内在联系.本研究可为掺镱光纤放大器的优化设计及功率的进一步提升提供理论支持.
Abstract
Ytterbium-doped fiber amplifiers(YDFAs)are widely applied in the fields of industrial processing,radar detection,medical treatment,and communications due to its simple energy level structure and high conversion efficiency.However,the performance of a YDFA is affected by many factors.Particularly under the influence of reabsorption effect,the signal power will increase first and then decrease as the length of the gain fiber increases.In this work,a simulation model of a YDFA is established,and the amplification processes of the signal light,pump light,and amplified spontaneous emission in Yb-doped fiber are simulated and calculated.In addition,the influencing factors affecting the performance of the YDFA are analyzed.The internal relationships between the pump method,pump power,peak wavelength of the signal light,type of gain fiber,and amplification performance are discussed herein.This study can provide theoretical support for the optimal design of YDFAs and further power scaling.
基金项目
科技部高端外国专家引进计划(G2022104010L)
科技部高端外国专家引进计划(G2023104003L)
国家自然科学基金(61935010)
国家自然科学基金(12275017)
北京市自然科学基金(4212052)
中央高校基本科研业务费专项(2021RC206)
NETL
NSTL
万方数据