Compact acousto-optical Q-switched Yb:ScBO3 laser with giant pulse energy

被引：3
作者：
Li, Xiaoheng [1 ,2 ]
Lu, Dazhi [1 ,2 ]
Yu, Haohai [1 ,2 ]
Zhang, Huaijin [1 ,2 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, 27 Shanda Nanlu, Jinan 250100, Peoples R China
[2] Shandong Univ, Inst Crystal Mat, 27 Shanda Nanlu, Jinan 250100, Peoples R China
来源：
OPTICS LETTERS | 2022年 / 47卷 / 22期
基金：
中国国家自然科学基金;
关键词：
PERFORMANCE; MJ;
D O I：
10.1364/OL.476118
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this Letter, a continuous-wave Yb:ScBO3 laser was enhanced with a maximum output power of 1.63 W and a slope efficiency of 48.97%, pumped by a continuous-wave 965 nm diode laser. Subsequently, the first, to the best of our knowledge, acousto-optically Q-switched Yb:ScBO3 laser was realized with an output wavelength of 1022 nm and repetition rates ranging from 0.04 to 1 kHz. The characteristics of pulsed lasers modulated by a commercial acousto-optic Q switcher were comprehensively demonstrated. With a low repetition rate of 0.05 kHz, the pulsed laser was generated under an absorbed pump power of 2.62 W, having an average output power of 0.44 W and giant pulse energy of 8.80 mJ. The pulse width and peak power were 80.71 ns and 109 kW, respectively. The findings manifest that the Yb:ScBO3 crystal is a gain medium with great potential for Q-switched laser generation with high pulse energy. (c) 2022 Optica Publishing Group
引用
收藏
页码：5877 / 5880
页数：4
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