Output characteristics of an actively Q-switched Tm:GdScO3 slab laser at 2 μm band

被引：0

作者：

Liu, Jing ^{[1
,2
,3
]}

Li, Shanming ^{[4
]}

Fan, Yuqing ^{[1
,2
,3
]}

Qian, Chuanpeng ^{[1
,3
]}

Yang, Ke ^{[1
,3
]}

Yu, Ting ^{[1
,2
,3
]}

Zhao, Chengchun ^{[4
]}

Shi, Xiangchun ^{[1
,2
,3
]}

Hang, Yin ^{[2
,4
]}

Ye, Xisheng ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Wang Zhijiang Innovat Ctr Laser, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Aerosp Laser Technol & Syst Dept, Shanghai 201800, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Res Ctr Laser Crystal, Shanghai 201800, Peoples R China

来源：

PHYSICA SCRIPTA | 2024年 / 99卷 / 10期

关键词：

Tm:GdScO3; 2 mu m laser; acousto-optic Q-switched; laser diode-pump; TEMPERATURE; PERFORMANCE; OPERATION;

D O I：

10.1088/1402-4896/ad770c

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An acousto-optic Q-switched Tm:GdScO3 slab laser at different pulse repetition frequencies was successfully demonstrated for the first time. The size of a slab crystal doped with a 2 at% Tm3+ is 2 mm x 4 mm x 20 mm. With the pump power of 33 W, a maximum average output power of 3.03 W was obtained with center wavelength of 1980 nm at pulse repetition frequency of 20 kHz. The optical-to-optical conversion efficiency and slope efficiency were 9.18% and 16.66%, respectively. The maximum pulse energy was 0.60 mJ with pulse width of 160 ns at 1 kHz, corresponding to the peak power of 3.75 kW. In addition, at the pump power of 33 W, the beam quality factors M-2 for horizontal and vertical directions were 1.33 and 1.08, respectively.

引用

页数：7

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