y Compact intracavity-pumped Ho : YVO4 laser developed using a diode-pumped Tm:YAP laser

被引：1
|
作者：
Hu, Huawen [1 ,2 ]
Huang, Haizhou [1 ]
Ge, Yan [1 ]
Zhong, Jie [1 ]
Huang, Jianhong [1 ]
Deng, Jing [1 ,2 ]
Li, Jinhui [1 ]
Lin, Wenxiong [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
来源：
OPTICAL ENGINEERING | 2020年 / 59卷 / 09期
基金：
美国国家科学基金会; 中国国家自然科学基金;
关键词：
2-mu m laser; intracavity-pumped; Ho:YVO4 crystal; Ho lasers; CONTINUOUS-WAVE; HOYAG LASER; MU-M; YAG LASER; Q-SWITCH; OPERATION;
D O I：
10.1117/1.OE.59.9.096106
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We developed a compact 2-mu m intracavity-pumped Ho : YVO4 laser using a diode-pumped Tm:YAP laser at room temperature. Before applying the Ho laser, the lasing characteristics of the a-cut Tm:YAP laser were studied, and a maximum output power of 2.76 W at 1951.6 nm was obtained under an incident laser diode pump power of 25 W with a slope efficiency of 15.8%. Under the same cavity structure, the continuous-wave Ho : YVO4 laser yielded a maximum output power of 1.7 W at 2052.7 nm for an incident diode pump power of 29 W, corresponding to a slope efficiency of 10.4%. The beam quality factor (M-2) of the Ho : YVO4 laser at the maximum output power was estimated to be 1.16 and 1.26 in the horizontal and vertical directions, respectively, which indicates the occurrence of near-diffraction-limited beam propagation. (C) 2020 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：8
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