中国物理B ›› 2012, Vol. 21 ›› Issue (9): 94212-094212.doi: 10.1088/1674-1056/21/9/094212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

High-power high-stability Q-switched green laser with intracavity frequency doubling of diode-pumped composite ceramic Nd:YAG laser

王与烨, 徐德刚, 刘长明, 王卫鹏, 姚建铨   

  1. Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China Key Laboratory of Optoelectronics Information Science and Technology, Tianjin University, Ministry of Education, Tianjin 300072, China
  • 收稿日期:2012-02-13 修回日期:2012-03-21 出版日期:2012-08-01 发布日期:2012-08-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61107086, 61172010, and 61101058), the Science and Technology Committee of Tianjin, China (Grant No. 11JCYBJC01100), and the National High Technology Research and Development Program of China (Grant No. 2011AA010205).

High-power high-stability Q-switched green laser with intracavity frequency doubling of diode-pumped composite ceramic Nd:YAG laser

Wang Yu-Ye (王与烨), Xu De-Gang (徐德刚), Liu Chang-Ming (刘长明), Wang Wei-Peng (王卫鹏), Yao Jian-Quan (姚建铨)   

  1. Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China Key Laboratory of Optoelectronics Information Science and Technology, Tianjin University, Ministry of Education, Tianjin 300072, China
  • Received:2012-02-13 Revised:2012-03-21 Online:2012-08-01 Published:2012-08-01
  • Contact: Wang Yu-Ye E-mail:yuyewang@tju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61107086, 61172010, and 61101058), the Science and Technology Committee of Tianjin, China (Grant No. 11JCYBJC01100), and the National High Technology Research and Development Program of China (Grant No. 2011AA010205).

摘要: We successfully obtain high-average-power high-stability Q-switched green laser based on diode-side-pumped composite ceramic Nd:YAG in a straight plano-concave cavity. The temperature distribution in composite ceramic Nd:YAG crystal is numerically analyzed and compared with that of conventional Nd:YAG crystal. By use of a composite ceramic Nd:YAG rod and a type-II high gray track resistance KTP (HGTR-KTP) crystal, a green laser with an average output power of 165 W is obtained at a repetition rate of 25 kHz, with a diode-to-green optical conversion of 14.68%, and a pulse width of 162 ns. To the best of our knowledge, both the output power and optical-to-optical efficiency are the highest values for green laser systems with intracavity frequency doubling of this novel composite ceramic Nd:YAG laser to date. The power fluctuation at around 160 W is lower than 0.3% in 2.5 hours.

关键词: high-average-power green laser, high stability, composite ceramic Nd:YAG rod

Abstract: We successfully obtain high-average-power high-stability Q-switched green laser based on diode-side-pumped composite ceramic Nd:YAG in a straight plano-concave cavity. The temperature distribution in composite ceramic Nd:YAG crystal is numerically analyzed and compared with that of conventional Nd:YAG crystal. By use of a composite ceramic Nd:YAG rod and a type-II high gray track resistance KTP (HGTR-KTP) crystal, a green laser with an average output power of 165 W is obtained at a repetition rate of 25 kHz, with a diode-to-green optical conversion of 14.68%, and a pulse width of 162 ns. To the best of our knowledge, both the output power and optical-to-optical efficiency are the highest values for green laser systems with intracavity frequency doubling of this novel composite ceramic Nd:YAG laser to date. The power fluctuation at around 160 W is lower than 0.3% in 2.5 hours.

Key words: high-average-power green laser, high stability, composite ceramic Nd:YAG rod

中图分类号:  (Diode-pumped lasers)

  • 42.55.Xi
42.60.Lh (Efficiency, stability, gain, and other operational parameters) 42.70.Hj (Laser materials)