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Chin. Phys. B, 2010, Vol. 19(6): 064208    DOI: 10.1088/1674-1056/19/6/064208
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

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)
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
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 $M^{2} = 1.43$.
Keywords:  master oscillator-power amplifier system      Nd:YAG ring laser  
Received:  12 August 2009      Accepted manuscript online: 
PACS:  42.55.Rz (Doped-insulator lasers and other solid state lasers)  
  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)  

Cite this article: 

Xie Shi-Yong(谢仕永), Lu Yuan-Fu(鲁远甫), Ma Qing-Lei(马庆磊),Wang Peng-Yuan(王鹏远),Shen Yu(申玉), Zong Nan(宗楠),Yang Feng(杨峰),Bo Yong(薄勇), Peng Qin-Jun(彭钦军),Cui Da-Fu(崔大复), and Xu Zu-Yan(许祖彦) High power high beam quality diode-pumped 1319-nm Nd:YAG oscillator-amplifier laser system 2010 Chin. Phys. B 19 064208

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