• DocumentCode
    1204247
  • Title

    Large Attenuation Measurement for Laser Beam by Intermediate Frequency Substitution Method

  • Author

    Kawakami, Tomotel ; Yokoshima, Ichiro

  • Volume
    32
  • Issue
    3
  • fYear
    1983
  • Firstpage
    450
  • Lastpage
    451
  • Abstract
    An intermediate frequency substitution method in the optical region is studied experimentally for attenuation measurement of laser beams. A frequency shifting technique with an acoustooptic modulator is used to obtain test and local oscillator signals for heterodyne detection. A 30-MHz waveguide-below-cutoff attenuator is adopted as a standard attenuator. Attenuations up to 70 dB can be measured with an accuracy of 0.2 dB.
  • Keywords
    Acoustic testing; Attenuation measurement; Frequency; Laser beams; Local oscillators; Optical attenuators; Optical mixing; Optical modulation; Optical waveguides; Waveguide lasers;
  • fLanguage
    English
  • Journal_Title
    Instrumentation and Measurement, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/TIM.1983.4315106
  • Filename
    4315106
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1204247