Efficient Q-switched Ho:GdVO4 laser resonantly pumped at 1942 nm

被引:37
|
作者
Yao, B. Q. [1 ]
Ding, Y. [1 ]
Duan, X. M. [1 ]
Dai, T. Y. [1 ]
Ju, Y. L. [1 ]
Li, L. J. [2 ]
He, W. J. [3 ]
机构
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China
[2] Heilongjiang Inst Technol, Inst Optoelect Technol, Harbin 150001, Peoples R China
[3] Sichuan Wisepride Ind Co LTD, Chengdu 610000, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
ROOM-TEMPERATURE; SPECTRAL PROPERTIES; HO; TM; CRYSTAL;
D O I
10.1364/OL.39.004755
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An efficient 2 mu m room-temperature Q-switched Ho: GdVO4 laser end-pumped by a 1942 nm Tm-fiber laser is demonstrated. To our knowledge, this is the first report of Q-switched performance of Ho: GdVO4 crystal. A maximum CW output power of 6.85 W under the absorbed pump power of 24.1 W was obtained with a slope efficiency of 39.5% at a temperature of 17 degrees C. With the same absorbed pump power, a maximum output energy per pulse of about 0.9 mJ and minimum pulse width of 4.7 ns were obtained at the pulsed repetition frequency (PRF) of 5 kHz, corresponding to a peak power of approximately 187.2 kW. (C) 2014 Optical Society of America
引用
收藏
页码:4755 / 4757
页数:3
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