光通信技术2025，Vol.49Issue(3)：102-107,6.DOI:10.13921/j.cnki.issn1002-5561.2025.03.017
应用于光纤激光系统的高增益高稳定性光纤放大器研究
Research on high-gain and high-stability fiber amplifiers for fiber laser system
摘要
Abstract
To address the dual requirements of gain and stability in high-power fiber laser system,a high-gain and high-stability fiber amplifier is designed.The optical path employs single-fiber double-pass dual-stage amplification technology combined with an all-polarization-maintaining fiber structure to improve gain medium utilization.Additionally,a circuit system based on auto-matic power control and closed-loop feedback is developed,achieving dynamic regulation through a peak sampling circuit and precision pump driving circuit.Experimental results show that the system achieves a maximum gain of 28.25 dB,with closed-loop control reducing output energy fluctuations from 2.21％to 0.42％,improving stability by 81％.Moreover,it reduces the required number of pump lasers while delivering a pulse energy output of 70.2 nJ at a pump current of 260 mA.关键词
光纤激光系统/高增益/能量稳定性/光纤放大器/闭环反馈控制Key words
fiber laser system/high gain/energy stability/optical fiber amplifier/closed-loop feedback control分类
电子信息工程引用本文复制引用
黎志刚,谢卓鑫,李晓晖,张良,陈峰,杨万里,杨小亮..应用于光纤激光系统的高增益高稳定性光纤放大器研究[J].光通信技术,2025,49(3):102-107,6.基金项目
广西科技基地和人才专项(桂科AD24010060)资助. （桂科AD24010060）
