12.0-W continuous-wave diode-end-pumped Nd:GdVO4 laser with high brightness operating at 912-nm

被引:65
作者
Gao, Jing [1 ]
Yu, Xin [1 ]
Chen, Fei [1 ]
Li, Xudong [1 ]
Yan, Renpeng [1 ]
Zhang, Kun [1 ]
Yu, Junhua [1 ]
Wang, Yuezhu [1 ]
机构
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150080, Peoples R China
关键词
ND-YAG LASER; OUTPUT POWER; 946; NM; BIBO;
D O I
10.1364/OE.17.003574
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a diode-pumped high-power continuous-wave (cw) laser at 912 nm based on the quasi-three-level F-4(3/2)-> I-4(9/2) transition in Nd:GdVO4 crystal. By using a 5-mm-long conventional bulk crystal with 0.2at.% Nd3+-doped concentration, the maximum output power of 12.0 W is obtained, with a slope efficiency of 29.3%. To the best of our knowledge, this is the highest output at 912 nm generated by diode-pumped Nd: GdVO4 lasers. Furthermore, 3.2 W 456 nm deep-blue light is acquired by frequency doubling, resulting in an optical-to-optical efficiency of 8.0%. The short-term power instability of the blue laser is less than 3%. (C) 2009 Optical Society of America
引用
收藏
页码:3574 / 3580
页数:7
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