High-power mid-infrared femtosecond master oscillator power amplifier Er:ZBLAN fiber laser system

查看全文 作　　者：Linpeng [1]Yu;Jinhui [1]Liang;Qinghui [1]Zeng;Jiacheng [1]Wang;Xing [1]Luo;Jinzhang [1]Wang;Peiguang [1]Yan;Fanlong [1]Dong;Xing [2]Liu;Qitao [3]Lü;Chunyu [1]Guo;Shuangchen [1,2]Ruan

机构地区：[1]Shenzhen Key Laboratory of Laser Engineering,Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,State Key Laboratory of Radio Frequency Heterogeneous Integration,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen,China;[2]Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes,Shenzhen Technology University,Shenzhen,China;[3]Han’s Laser Technology Industry Group Co.,Ltd.,Shenzhen,China

出　　处：《High Power Laser Science and Engineering》索引2023年第11卷第4期,共6页

基　　金：the National Natural Science Foundation of China(61975136,61935014,62105222,61775146,61905151);the Basic and Applied Basic Research Foundation of Guangdong Province(2019A1515010699);the Shenzhen Science and Technology Innovation Program(CJGJZD20200617103003009,JCYJ20210324094400001,GJHZ20210705141801006);the Beijing Natural Science Foundation(JQ21019). 摘　　要：High-power femtosecond mid-infrared(MIR)lasers are of vast importance to both fundamental research and applications.We report a high-power femtosecond master oscillator power amplifier laser system consisting of a singlemode Er:ZBLAN fiber mode-locked oscillator and pre-amplifier followed by a large-mode-area Er:ZBLAN fiber main amplifier.The main amplifier is actively cooled and bidirectionally pumped at 976 nm,generating a slope efficiency of 26.9%.Pulses of 8.12 W,148 fs at 2.8μm with a repetition rate of 69.65 MHz are achieved.To the best of our knowledge,this is the highest average power ever achieved from a femtosecond MIR laser source.Such a compact ultrafast laser system is promising for a wide range of applications,such as medical surgery and material processing. 关键词：femtosecond fiber laser fluoride fiber amplifier master oscillator power amplifier MID-INFRARED

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High-power mid-infrared femtosecond master oscillator power amplifier Er:ZBLAN fiber laser system

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