Passively Q-switched Ho:YLF laser pumped by Tm3+-doped fiber laser

被引：12

作者：

Yang, Chao ^{[1
]}

Ju, Youlun ^{[1
]}

Yao, Baoquan ^{[1
]}

Dai, Tongyu ^{[1
]}

Duan, Xiaoming ^{[1
]}

Li, Jiang ^{[2
]}

Ding, Yu ^{[1
]}

Liu, Wei ^{[1
]}

Pan, Yubai ^{[2
]}

Li, Chaoyu ^{[2
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150080, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent & Optofunct Adv Inorgan Mat, Shanghai 200050, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2016年 / 77卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Fiber laser; Ho:YLF laser; Passively Q-Switched; SINGLE-FREQUENCY; MU-M; TM;

D O I：

10.1016/j.optlastec.2015.08.022

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a compact and efficient passively Q-switched (PQS) Ho:YLF laser pumped by a self-made all-fiber laser. Firstly, we design and make an all-fiber laser operating at 1940 nm with a slope efficiency of 40.6%. Then, the all-fiber laser was used to pump Ho:YLF laser directly. In the CW (continues-wave) operation Ho:YLF laser, the maximum output power was 7.79 W, corresponding to the slope efficiency of 55.2%. Using Cr2+:ZnS as the saturable absorber, the average power of 6.03 W was achieved with the slope efficiency of 45.9%. The shortest pulse duration was 15.6 ns and the pulse repetition frequency was 23 kHz at the pump power of 20.4 W. The pulse energy was a constant as 2.7 mJ when the pump power exceeded 15 W. The beam quality factor of M-2 was 1.05, indicating nearly diffraction limited beam propagation. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：55 / 58

页数：4

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