High power red laser at 671nm by intracavity frequency doubling of a Nd:YVO4 laser
Yao Ai-Yun (姚爱云)a, Hou Wei (侯玮)a, Li Hui-Qing (李惠清)a, Bi Yong (毕勇)b, Li Rui-Ning (李瑞宁)a, Geng Ai-Cong (耿爱丛)a, Kong Yu-Peng (孔宇鹏), Cui Da-Fu (崔大复)a, Xu Zu-Yan (许祖彦)a
a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Beijing 100080, China; b Academy of Opto-electronics, Chinese Academy of Sciences,Beijing 100080, China
Abstract This paper reports a high-power quasi-continuous wave (quasi-CW) source of red laser at 671nm obtained by intracavity frequency doubling of a double-end-pumped 1342nm Nd:YVO$_{4}$ laser, based on the nonlinear crystal LiB$_{3}$O$_{5}$(LBO) The average output power of 2.9W at 671nm was obtained at the incident pump power of 19.5W. The overall optical to optical efficiency is 14.9%. We have analyzed the influence of the optimal pump size, the optimal focal position and the reduction of the thermal effect on high output. The combination of double-end-pumping and the quasi-CW performance greatly reduces the thermal effect.
Received: 21 October 2004
Revised: 25 February 2005
Accepted manuscript online:
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
Fund: Project supported by the Innovation Program of the Chinese Academy of Sciences (Grant No KJCX1-05), the National High Technology Development Program of China (Grant No 2002AA311120), and the Council for Science and Technology of Beijing
Cite this article:
Yao Ai-Yun (姚爱云), Hou Wei (侯玮), Li Hui-Qing (李惠清), Bi Yong (毕勇), Li Rui-Ning (李瑞宁), Geng Ai-Cong (耿爱丛), Kong Yu-Peng (孔宇鹏), Cui Da-Fu (崔大复), Xu Zu-Yan (许祖彦) High power red laser at 671nm by intracavity frequency doubling of a Nd:YVO4 laser 2005 Chinese Physics 14 1433
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