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Volume 29 Issue 5
Sep.  2013
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Finite element analysis of thermal effect of LD end-pumped laser medium

  • 1.

    Institute of Directed Energy Technology, Photoelectric Science and Engineering School, Nationnal University of Defence Technology, Changsha 410073, China

  • Corresponding author: JIANG Zong-fu, jiangzongfu@yahoo.com.cn ; 
  • Received Date: 2004-07-19
    Accepted Date: 2004-10-20
  • For the case of square end faces of the medium,focused Gaussian beam pumping,temperature field of laser medium end-pumped by laser diode(LD) has been studied by using finite element methods.The temperature and its distribution in the medium,such as Nd:YAG,are determined.At last the temperature field at the condition of improving the convective heat coefficient of medium's surface,reducing the coolant temperature or cooling the pumped face of rod is simulated.The results indicate thatit hardly fall the thermal effects by imoroving the convective heat coefficient of medium's surface and reducing the coolant temperature,but it can reduce the thermal effects virtually by cooling the pumped face of rod.
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  • [1] 余锦,檀慧明,钱龙生 et al.纵向抽运固体激光介质热透镜效应的理论研究[J].强激光与粒子束,2000,12(1):27～30.
    [2]

    BROWN D C.Nonlinear thermal distortion in YAG rod amplifiers[J].IEEE J Q E,1998,34(12):2383～2392.
    [3] 张玲,杨少辰,路绪鹏 et al.LD端面抽运Nd:YAG激光器的热效应研究[J].北方交通大学学报,2002,26(6):45～47.
    [4] 李隆,史彭,白晋涛.单端抽运激光晶体温度分布的半解析热分析[J].西安交通大学学报,2004,38(4):369～372.
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通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Finite element analysis of thermal effect of LD end-pumped laser medium

    Corresponding author: JIANG Zong-fu, jiangzongfu@yahoo.com.cn; 
  • 1. Institute of Directed Energy Technology, Photoelectric Science and Engineering School, Nationnal University of Defence Technology, Changsha 410073, China
  • Received Date: 2004-07-19
  • Accepted Date: 2004-10-20
  • Available Online: 2005-09-25

Abstract: For the case of square end faces of the medium,focused Gaussian beam pumping,temperature field of laser medium end-pumped by laser diode(LD) has been studied by using finite element methods.The temperature and its distribution in the medium,such as Nd:YAG,are determined.At last the temperature field at the condition of improving the convective heat coefficient of medium's surface,reducing the coolant temperature or cooling the pumped face of rod is simulated.The results indicate thatit hardly fall the thermal effects by imoroving the convective heat coefficient of medium's surface and reducing the coolant temperature,but it can reduce the thermal effects virtually by cooling the pumped face of rod.

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