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

被引：19

作者：

Yu, Linpeng ^{[1
]}

Liang, Jinhui ^{[1
]}

Zeng, Qinghui ^{[1
]}

Wang, Jiacheng ^{[1
]}

Luo, Xing ^{[1
]}

Wang, Jinzhang ^{[1
]}

Yan, Peiguang ^{[1
]}

Dong, Fanlong ^{[1
]}

Liu, Xing ^{[2
]}

Lue, Qitao ^{[3
]}

Guo, Chunyu ^{[1
,4
]}

Ruan, Shuangchen ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen Key Lab Laser Engn, Guangdong Prov Key Lab Micro Nano Optomechatron En, Shenzhen, Peoples R China

[2] Shenzhen Technol Univ, Key Lab Adv Opt Precis Mfg Technol Guangdong Highe, Shenzhen, Peoples R China

[3] Hans Laser Technol Ind Grp Co Ltd, Shenzhen, Peoples R China

[4] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China

来源：

HIGH POWER LASER SCIENCE AND ENGINEERING | 2023年 / 11卷

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

femtosecond fiber laser; fluoride fiber amplifier; master oscillator power amplifier; mid-infrared; MU-M; LEVEL; GENERATION; PULSES; FS;

D O I：

10.1017/hpl.2023.42

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

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 single-mode 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 2.8 & mu;m 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.

引用

页数：6

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