掺镱有源光纤中Al^3+浓度对高功率激光输出稳定性的影响研究  

Effect of Al^3+ Concentration in Ytterbium Doped Active Fiber on High-Power Laser Output Stability

作　　者：张俊逸 冯术娟 赵霞 刘礼华 周军 ZHANG Junyi;FENG Shujuan;ZHAO Xia;LIU Lihua;ZHOU Jun(Jiangsu Fasheng Optical Communication Technology Co.,Ltd.,Wuxi,Jiangsu Province,214433 China;Shanghai Optical Fiber Precision Machinery Research Institute,Shanghai,200000 China)

机构地区：[1]江苏法尔胜光通信科技有限公司,江苏无锡214433 [2]上海光纤精密机械研究所,上海200000

出　　处：《科技资讯》2020年第31期9-14,共6页Science & Technology Information

基　　金：江苏省产业前瞻竞争项目《高性能大功率光纤激光器用光纤合束器研发》(项目编号:BE2017052);江苏省博士后科研资助计划《高功率大模场掺镱有源光纤制备及性能测试》(项目编号:2018K051C);江苏省科技成果转化专项资金项目《全激光显示用集束能量光纤组件的研发及产业化》(项目编号:BA201901)。

摘　　要：掺镱有源光纤的抗光子暗化性能是影响高功率光纤激光器长期功率稳定性的重要因素,研究共掺杂离子浓度对掺镱有源光纤的抗光子暗化性能的影响对高功率掺镱光纤激光器的研发有重要的意义。该文采用自制的具有不同Al^3+掺杂浓度的20/400掺镱有源光纤搭建1500 W激光输出的光纤振荡器,通过15天的持续烤机实验,研究Al^3+浓度对高功率掺镱有源光纤激光器长期功率稳定性的影响。研究表明,当Yb3+浓度为1.3 wt.%,Al^3+浓度为3.6 wt.%时,其斜效率最高为71.8%,掺镱有源光纤经过15天、1500 W烤机实验后,其激光输出功率无明显降低,未发生模式不稳定性,表现为优异的抗光子暗化性能。In this paper,we use 20/400 ytterbium doped active fiber with different Al^3+concentration to build a 1500W laser output fiber oscillator.Through 15 days of continuous baking machine experiment,we studied the influence of Al^3+concentration on the long-term power stability of high-power ytterbium doped active fiber laser.The results show that when Yb3+concentration is 1.3 wt.%and Al^3+concentration is 3.6 wt.%,the highest skew efficiency is 71.8%.After 15 days of experiments in 1500 W toaster,the output power of Yb3+-doped active fiber does not decrease significantly,and there is no mode instability.

关 键 词：掺镱有源光纤 高功率 光子暗化效应 烤机实验 

分 类 号：TN248[电子电信—物理电子学]