中国物理B ›› 2010, Vol. 19 ›› Issue (6): 64208-064208.doi: 10.1088/1674-1056/19/6/064208

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High power high beam quality diode-pumped 1319-nm Nd:YAG oscillator-amplifier laser system

鲁远甫1, 谢仕永2, 马庆磊2, 宗楠2, 杨峰2, 薄勇3, 彭钦军3, 崔大复3, 许祖彦3, 王鹏远4, 申玉4   

  1. (1)Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (2)Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100190, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China; (3)Research Centre of Laser Physics and Technique, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (4)Research Centre of Laser Physics and Technique, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;Graduate University of the Chinese Academy of Sciences, B
  • 收稿日期:2009-08-12 出版日期:2010-06-15 发布日期:2010-06-15

High power high beam quality diode-pumped 1319-nm Nd:YAG oscillator-amplifier laser system

Xie Shi-Yong(谢仕永)a)c)†, Lu Yuan-Fu(鲁远甫)a), Ma Qing-Lei(马庆磊)a)c),Wang Peng-Yuan(王鹏远) b)c),Shen Yu(申玉)b)c), Zong Nan(宗楠)a)c),Yang Feng(杨峰)a)c),Bo Yong(薄勇)b), Peng Qin-Jun(彭钦军) b),Cui Da-Fu(崔大复)b), and Xu Zu-Yan(许祖彦)b)   

  1. a Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; b Research Centre of Laser Physics and Technique, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; c Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2009-08-12 Online:2010-06-15 Published:2010-06-15

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摘要： This paper demonstrated a high power and high beam quality diode-pumped 1319-nm Nd:YAG master oscillator-power amplifier laser system. A thermally near-unstable resonator with four-rod birefringence compensation flat--flat cavity was adopted as the master oscillator. A solid etalon was inserted in the unidirectional ring resonator to compress the laser linewidth. Under a repetition rate of 500~Hz and pulse width of 160~\mus, the master oscillator delivers an average output power of 16.8~W at 1319~nm with linear polarisation, beam quality factor M^{2} = 1.16 and linewidth of 3.2~GHz. A double-pass power amplifier with two amplifier stages was employed for higher power scaling and the output power was amplified to be 25.9~W with M^{2} = 1.43.

Abstract: This paper demonstrated a high power and high beam quality diode-pumped 1319-nm Nd:YAG master oscillator-power amplifier laser system. A thermally near-unstable resonator with four-rod birefringence compensation flat--flat cavity was adopted as the master oscillator. A solid etalon was inserted in the unidirectional ring resonator to compress the laser linewidth. Under a repetition rate of 500 Hz and pulse width of 160 $\mu$s, the master oscillator delivers an average output power of 16.8 W at 1319 nm with linear polarisation, beam quality factor $M^{2} = 1.16$ and linewidth of 3.2 GHz. A double-pass power amplifier with two amplifier stages was employed for higher power scaling and the output power was amplified to be 25.9 W with $M^{2} = 1.43$.

Key words: master oscillator-power amplifier system, Nd:YAG ring laser

中图分类号:  (Doped-insulator lasers and other solid state lasers)

  • 42.55.Rz
42.60.By (Design of specific laser systems) 42.60.Da (Resonators, cavities, amplifiers, arrays, and rings) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.55.Xi (Diode-pumped lasers) 42.60.Lh (Efficiency, stability, gain, and other operational parameters)