High average power (105 W) Fe:ZnSe laser pumped by radiation of laser diode side-pumped Er:YAG lasers

被引：2

作者：

Wu, Yingchen ^{[1
,2
,3
,4
]}

Zhou, Rui ^{[2
,4
]}

Zhou, Sikun ^{[2
,4
]}

Ren, Huaijin ^{[2
,4
]}

Zhang, Song ^{[3
]}

Wei, Xingbin ^{[2
,4
]}

Shang, Jianli ^{[2
,4
]}

Wang, Weimin ^{[2
,4
]}

Leng, Mingyang ^{[2
]}

Dai, Wenlin ^{[2
]}

Yi, Jiayu ^{[2
,4
]}

Tang, Chun ^{[2
,4
]}

Chen, Lei ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Opt Engn, Nanjing 210094, Peoples R China

[2] CAEP, Inst Appl Elect, Mianyang 621900, Sichuan, Peoples R China

[3] China Acad Engn Phys, Grad Sch, Beijing 100193, Peoples R China

[4] Natl Key Lab Sci & Technol Adv Laser & High Power, Mianyang 621900, Sichuan, Peoples R China

来源：

OPTICS LETTERS | 2024年 / 49卷 / 12期

关键词：

TEMPERATURE; ZNSE;

D O I：

10.1364/OL.525052

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high average power re -frequency operation Fe:ZnSe laser using laser diode side -pumped free -running Er:YAG lasers as activating sources is presented. Two pieces of subsurface layer doped Fe:ZnSe polycrystal are adoptive in a reflective resonator configuration and face -cooled by liquid nitrogen. A maximal Fe:ZnSe laser power of 105 W at a wavelength of 4.1 mu m is achieved upon pumping by ten home-made Er:YAG lasers with fiber coupled output working at a frequency of 250 Hz and a pulse duration of similar to 420 mu s. Corresponding to the maximum Fe:ZnSe laser power, the optical-optical efficiency and slope efficiency with respect to the absorbed pump power are 43% and 44% respectively. The beam quality factor M 2 is measured to be 3.4. To the best of our knowledge, it is the highest output average power of an Fe:ZnSe laser reported. (c) 2024 Optica Publishing Group

引用

页码：3476 / 3479

页数：4

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