Faraday plasma current sensor with compensation for reciprocal birefringence induced by mechanical perturbations

  • Barmenkov Y
  • Mendoza-Santoyo F
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Abstract

A Faraday fiber-optic current sensor was employed to measure the tokamak plasma current. In order to decrease the influence of mechanical perturbations on the sensor sensitivity, a two-pass optical scheme with a variable Faraday mirror at the fiber end is proposed. A decrease, by two orders of magnitude, in the influence of the linear birefringence produced by an external piezoceramic fiber modulator was experimentally observed.

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Barmenkov, Y. O., & Mendoza-Santoyo, F. (2003). Faraday plasma current sensor with compensation for reciprocal birefringence induced by mechanical perturbations. Journal of Applied Research and Technology, 1(02). https://doi.org/10.22201/icat.16656423.2003.1.02.614

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