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Volume 28 Issue 1
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Citation:
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Study of dynamic characteristics of multirod plane-plane resonators

  • 1.

    Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China

  • Received Date: 2003-04-28
    Accepted Date: 2003-06-11
  • Based on the equivalent resonator method,the results of a two rod plane-plane resonator used for high power solid state lasers are extended to multirod plane-plane resonators.The analytical expressions for g*-parameters and equivalent resonator length of a multirod plane-plane resonator are derived.The dynamic characteristics of such a type of resonator are analyzed in detail,and illustrated with numerical examples.It is shown that for two types of multirod symmetric plane-plane resonators,the characteristic curve on the g*-parameter diagram is a straight line passing through the origin.If there is a small discrepance of the thermal focal length of rods,the characteristic curve is no longer a straight line.However,by a suitable adjustment of the distances between the mirrors and rods,the curve becomes again a straight line.Therefore,the discrepance of the thermal focal length can be compensated in such a way,and the relevant mathematical formula is also proposed.
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    GIESEN A,HUGEL H,VOSS A et al.Appl Phys,1994,B58:365～372.
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    KORTZ H P,IFFLÜNDER R M,WEBER H.Appl Opt,1981,20:4124～4134.
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    DRIEDGER K P,IFFLÜNDER R M,WEBER H.IEEE J Q E,1988,24(4):665～673.
    [4] 李正佳,夏文建,朱长虹 et al.激光技术,1998,22(5):284～286.
    [5] 朱广志,陈培峰,周卓尤 et al.激光杂志,2003,24(2):29～31.
    [6] 吕百达.固体激光器件.北京:北京邮电大学出版社,2002.114～117. 
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Study of dynamic characteristics of multirod plane-plane resonators

  • 1. Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China
  • Received Date: 2003-04-28
  • Accepted Date: 2003-06-11
  • Available Online: 2004-01-25

Abstract: Based on the equivalent resonator method,the results of a two rod plane-plane resonator used for high power solid state lasers are extended to multirod plane-plane resonators.The analytical expressions for g*-parameters and equivalent resonator length of a multirod plane-plane resonator are derived.The dynamic characteristics of such a type of resonator are analyzed in detail,and illustrated with numerical examples.It is shown that for two types of multirod symmetric plane-plane resonators,the characteristic curve on the g*-parameter diagram is a straight line passing through the origin.If there is a small discrepance of the thermal focal length of rods,the characteristic curve is no longer a straight line.However,by a suitable adjustment of the distances between the mirrors and rods,the curve becomes again a straight line.Therefore,the discrepance of the thermal focal length can be compensated in such a way,and the relevant mathematical formula is also proposed.

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