中国物理B ›› 2005, Vol. 14 ›› Issue (7): 1433-1438.doi: 10.1088/1009-1963/14/7/029

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High power red laser at 671nm by intracavity frequency doubling of a Nd:YVO4 laser

毕勇1, 姚爱云2, 侯玮2, 李惠清2, 李瑞宁2, 耿爱丛2, 孔宇鹏2, 崔大复2, 许祖彦2   

  1. (1)Academy of Opto-electronics, Chinese Academy of Sciences,Beijing 100080, China; (2)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Beijing 100080, China
  • 收稿日期:2004-10-21 修回日期:2005-02-25 出版日期:2005-06-20 发布日期:2005-06-20
  • 基金资助:
    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

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   

  1. 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
  • Received:2004-10-21 Revised:2005-02-25 Online:2005-06-20 Published:2005-06-20
  • Supported by:
    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

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摘要： 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.

关键词: quasi-continuous wave, double-end-pumped, thermal focal length

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.

Key words: quasi-continuous wave, double-end-pumped, thermal focal length

中图分类号:  (Nonlinear optical crystals)

  • 42.70.Mp
42.55.Rz (Doped-insulator lasers and other solid state lasers) 42.55.Xi (Diode-pumped lasers) 42.60.Pk (Continuous operation) 42.60.Da (Resonators, cavities, amplifiers, arrays, and rings) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)