1 kHz, 1.5 MW peak power pulse generation from an acousto-optically Q-switched Ho:GdVO4 oscillator

被引：10
|
作者：
Mi, Shuyi [1 ]
Wei, Disheng [1 ]
Tang, Jinwen [1 ]
Yao, Baoquan [1 ]
Li, Junhui [1 ]
Yang, Ke [1 ]
Duan, Xiaoming [1 ]
Dai, Tongyu [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2022年 / 152卷
关键词：
High-peak-power; Acousto-optically Q-switched; Ho.GdVO4; laser; HIGH-REPETITION-RATE; CONTINUOUS-WAVE; HOYLF LASER; OPERATION; HO;
D O I：
10.1016/j.optlastec.2022.108114
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrated a high-peak-power acousto-optically Q-switched Ho:GdVO4 laser pumped by a linear polarized Tm:YAP solid laser. Adopting 0.5 at. % Ho:GdVO4 crystals as the gain medium, the maximum continuous-wave output power was 16.6 W at 2048.5 nm with the incident pump power of 97.3 W, corresponding to a slope efficiency of 51.5%. When the pulse repetition frequency was 1 kHz, the maximum pulse energy of 10.7 mJ with a pulse width of 6.9 ns was obtained, corresponding to a peak power of 1.5 MW. To the best of our knowledge, this is the first demonstration of a Q-switched Ho:GdVO4 laser with pulse energy exceeding 10 mJ, and the peak power reached a million-watt level.
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页数：4
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