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Volume 24 Issue 6
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2000 >  24(6): 341-344

Citation:
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Investigation on the experimental measurement of laser beam quality

  • 1.

    Dept. of Optical Engineering, Beijing Institute of Technology, Beijing, 100081

  • Received Date: 1999-10-11
    Accepted Date: 1999-10-11
  • The beam quality of a LD pumped Nd:YAG laser is measured with CCD camera system. The background characteristics of the CCD system and the influence of the size of integral box upon measurement results are investigated. The following conclusions can be derived form experimental results: (1) Background is strongly depend upon exposure time and pixel binning,while temperature has an ignorable effect upon it,whether with or without ambient light. (2) A 5%-cut is the minimum value in order to get a reasonable result.
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  • [1]

    Document ISO/TC172/SC9/WG1/N56,Milan,Italy,1993
    [2]

    Champagne Y,Belanger P A.Opt & Quant Electron,1995;(27):813～824
    [3] 庞长富．激光束传输特性参数测量与评价的研究．北京理工大学博士学位论文,1997
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Investigation on the experimental measurement of laser beam quality

  • 1. Dept. of Optical Engineering, Beijing Institute of Technology, Beijing, 100081
  • Received Date: 1999-10-11
  • Accepted Date: 1999-10-11
  • Available Online: 2000-11-25

Abstract: The beam quality of a LD pumped Nd:YAG laser is measured with CCD camera system. The background characteristics of the CCD system and the influence of the size of integral box upon measurement results are investigated. The following conclusions can be derived form experimental results: (1) Background is strongly depend upon exposure time and pixel binning,while temperature has an ignorable effect upon it,whether with or without ambient light. (2) A 5%-cut is the minimum value in order to get a reasonable result.

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