量子电子学报2018，Vol.35Issue(1)：31-36,6.DOI:10.3969/j.issn.1007-5461.2018.01.005
MOPA光纤激光器放大级自激振荡实验研究
Experimental research on amplifier stage self-excited oscillation of MOPA fiber
孟献国 1查根胜 2贾先德1
作者信息
- 1. 中国科学院安徽光学精密机械研究所, 安徽省光子器件与材料重点实验室, 安徽 合肥 230031
- 2. 中国科学技术大学, 安徽 合肥 230026
- 折叠
摘要
Abstract
In high power master oscillation power amplification (MOPA) laser,the amplified spontaneous emission (ASE) and induced self-excited oscillation have significant effects on output characteristics of lasers.Relationship between the self-excited oscillation and fiber end surface reflectivity is analyzed theoretically.Based on the self-designed MOPA fiber laser system,relationships between the self-excited oscillation and gain fiber length,pump power,signal power are investigated experimentally.According to the experimental results,the output characteristic curves of MOPA fiber laser are summarized.Results show that when the amplification stage ranges from 10 to 15,the proportion of self-excited oscillation light in output spectrum is the smallest.Experimental results provide a reference for the optimization of MOPA fiber amplifier and improvement of signal to noise ratio of output laser.关键词
光纤光学/主振荡功率放大光纤激光器/放大的自发辐射/自激振荡/输出特性曲线Key words
fiber optics/master oscillation power amplification fiber laser/amplified spontaneous emission/self-excited oscillation/output characteristic curves分类
信息技术与安全科学引用本文复制引用
孟献国,查根胜,贾先德..MOPA光纤激光器放大级自激振荡实验研究[J].量子电子学报,2018,35(1):31-36,6.
