Tunable twisted-mode Ho:YAG laser at continuous-wave and pulsed operation

被引：6
|
作者：
Dai, Tongyu [1 ]
Wang, Yunpeng [1 ]
Guo, Shuangxing [1 ]
Ju, Youlun [1 ]
Duan, XiaoMing [1 ]
Yao, Baoquan [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China
来源：
OPTICS EXPRESS | 2020年 / 28卷 / 21期
基金：
中国国家自然科学基金;
关键词：
SINGLE-FREQUENCY; RING LASER; OUTPUT; TM;
D O I：
10.1364/OE.405153
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A single-longitudinal-mode Ho:YAG laser with a twisted-mode cavity under the continuous-wave and pulsed operation was demonstrated. The maximum continuous-wave single-longitudinal-mode output power of 0.76 W was obtained at the wavelength of 2097.46 nm, corresponding to a slope efficiency of 28.9%. The output wavelength was tuned from 2096.94 nm to 2098.48 nm by utilizing a 0.5-mm-thick etalon. Furthermore, the single-frequency pulsed operation of the twisted-mode Ho:YAG laser was realized by the electro-optic switch. For the 2 kHz pulse repetition frequency, the single-frequency pulse energy reached 0.2 mJ with the pulse width of 116.5 ns. The beam quality factors M-2 of the pulsed twisted-mode Ho:YAG laser in the x and y directions were 1.15 and 1.10, respectively. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：31775 / 31780
页数：6
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