强激光与粒子束2024，Vol.36Issue(3)：82-84,3.DOI:10.11884/HPLPB202436.240035
长波段半导体激光泵浦光纤激光器实现2kW功率输出
2 kW fiber laser pumped by long-wavelength laser diodes
摘要
Abstract
The high-power fiber laser pumped by laser diodes(LDs)has the advantages of high efficiency,small size,light weight,and good stability,and has been widely used in many fields such as industrial processing.To improve the absorption rate of pump laser,the 915 nm and 976 nm LDs are commonly used as the pump source of the traditional fiber lasers.The quantum defect and pump absorption coefficient are comparatively high in the fiber lasers pumped by these LDs,which leads to low transverse mode instability(TMI)threshold.To improve quantum efficiency and potential TMI threshold,the fiber laser directly pumped by LDs with wavelength longer than 1010 nm is proposed.An oscillating-amplifying integrated laser was built,and 2.05 kW output laser with beam quality M2 of 1.7 was realized when the fiber laser was pumped by 1010 nm LDs with maximum pump power of 2.56 kW.In the future,fiber laser with higher output power and better beam quality can be realized by increasing the pump power and optimizing the fiber characteristics.关键词
光纤激光器/量子亏损/振荡放大一体化/模式不稳定Key words
fiber laser/quantum defect/oscillating-amplifying integrated laser/transverse mode instability分类
信息技术与安全科学引用本文复制引用
王鹏,习锋杰,王泽锋,许晓军,周朴,陈金宝,孟祥明,吴函烁,叶云,杨保来,奚小明,史尘,张汉伟,王小林..长波段半导体激光泵浦光纤激光器实现2kW功率输出[J].强激光与粒子束,2024,36(3):82-84,3.基金项目
湖南省杰出青年基金项目(2023JJ10057) （2023JJ10057）
长沙市杰出创新青年培养计划项目(kq2206006) （kq2206006）
基础科学研究项目(JCKY2021525B015) （JCKY2021525B015）
