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Imperfection errors in glass block faraday effect current sensor


Theoretical analysis of measurement errors caused by the imperfection of the sensing optical loop in a glass block Faraday effect current sensor has been presented. The experimental results with the fabricated sensor which was designed to achieve a closed homogeneous and isotropic optical path show the importance of the perfectly isotropic and closed loop, in accordance with the theoretical consideration.

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Correspondence to Toshihiko Yoshino or Yoshitaka Takahashi or Mikihiko Gojyuki.

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Yoshino, T., Takahashi, Y. & Gojyuki, M. Imperfection errors in glass block faraday effect current sensor. Optical Review 4, A108 (1997).

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Key words

  • Faraday effect
  • Ampere’s law
  • optical sensing
  • current sensor
  • thin film
  • dielectric coating