Faraday Plasma Current Sensor with Compensation for Reciprocal Birefringence Induced by Mechanicalperturbations

نویسنده

  • Y. O. Barmenkov
چکیده

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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تاریخ انتشار 2003