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Volume 28 Issue 3
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2004 >  28(3): 231-233,236

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Influence of detector’s aperture on metrical precision of ring-down cavity

  • 1.

    Institute of Laser Physics & Chemistry, Sichuan University, Chengdu 610064, China;

  • 2.

    Institute of Applied Electronic, CAEP, Mianyang 621900, China

  • Received Date: 2003-07-11
    Accepted Date: 2003-08-25
  • In order to study the metrical precision of reflectivity via cavity ring-down spectroscopy,first of all,it is investigated that influence of length misadjustment of ring-down cavity on its mode coupling.Then,based on propagation of Gaussian beam,it is deduced that relation between detector's aperture and output power of ring-down cavity of length misadjustment,and it is also numerically simulated that influence of detector's aperture on metrical precision.Results show that the bigger the detector's aperture is,the lower the metrical relative error is.
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    ANDERSON D Z,FRISCH J C,MASSER C S.Mirror reflectorbased on optical cavity decay time[J].Appl Opt,1984(23):1238～1242.
    [2] 孙福革,孙龙,戴东旭.用光腔衰荡光谱方法精确测量高反镜的反射率[J].中国激光,1999,A26(1):35～38.
    [3] 赵宏太,柳晓军,王谨 et al.用光腔衰荡测定腔镜及镜片的反射率[J].光电子·激光,2001,12(1):71～73.
    [4] 吕百达.激光光学[M].成都:四川大学出版社,1992.168～170.
    [5]

    KOGELNIK H.Coupling and conversion coefficients for opticalmodes[J].Symposium on Quasi-Optics,1964,8～10(6):333.
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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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Influence of detector’s aperture on metrical precision of ring-down cavity

  • 1. Institute of Laser Physics & Chemistry, Sichuan University, Chengdu 610064, China;
  • 2. Institute of Applied Electronic, CAEP, Mianyang 621900, China
  • Received Date: 2003-07-11
  • Accepted Date: 2003-08-25
  • Available Online: 2004-05-25

Abstract: In order to study the metrical precision of reflectivity via cavity ring-down spectroscopy,first of all,it is investigated that influence of length misadjustment of ring-down cavity on its mode coupling.Then,based on propagation of Gaussian beam,it is deduced that relation between detector's aperture and output power of ring-down cavity of length misadjustment,and it is also numerically simulated that influence of detector's aperture on metrical precision.Results show that the bigger the detector's aperture is,the lower the metrical relative error is.

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