全光纤MOPA结构高功率脉冲激光器设计  

Design of high-power pulsed laser with all-fiber MOPA structure

作　　者：李全法 渠彪 潘诗发 LI Quanfa;QU Biao;PAN Shifa(School of Physics and Information Engineering,Quanzhou Normal University,Quanzhou Fujian 362000,China;Institute of Photon Technology Research,Quanzhou Normal University,Quanzhou Fujian 362000,China)

机构地区：[1]泉州师范学院物理与信息工程学院,福建泉州362000 [2]泉州师范学院光子技术研究院,福建泉州362000

出　　处：《光通信技术》2025年第2期100-105,共6页Optical Communication Technology

基　　金：福建省教育厅重点项目(JZ160458)资助;福建省中青年科研项目(JAT190503、JAT200567)资助;泉州市科技项目(2017G048)资助;泉州师范学院本科教育类教育教学改革研究项目(2023JGX009)资助。

摘　　要：为实现高功率、多参数可调的全光纤主振荡功率放大器(MOPA)结构纳秒脉冲激光输出,采用电路直接调制的半导体激光器作为种子源,设计了一种全光纤MOPA结构高功率脉冲激光器,优化了有源光纤弯曲半径及光路结构。实验结果表明,当一级和二级泵浦功率分别为2.2 W和34.38 W时,该激光器可获得平均输出功率为20.85 W、最大峰值功率为12.9 kW、中心波长为1064.5 nm、线宽为3.75 nm、平均光束质量M2为1.345的稳定输出。To achieve high-power,multi-parameter tunable nanosecond pulsed laser output based on an all-fiber master oscillator power amplifier(MOPA)structure,a semiconductor laser directly modulated by an electrical circuit is employed as the seed source.A high-power pulsed laser with an all-fiber MOPA structure is designed,optimizing the bending radius of the active fiber and the optical path configuration.The experimental results show that when the primary and secondary pump powers are 2.2 W and 34.38 W,respectively,the laser achieves stable output with an average power of 20.85 W,a maximum peak power of 12.9 kW,a central wavelength of 1064.5 nm,a linewidth of 3.75 nm,and an average beam quality factor M~2 of 1.345.

关 键 词：脉冲激光器 全光纤 掺镱光纤激光器 种子源调制 主振荡功率放大器 

分 类 号：TN248.1[电子电信—物理电子学]