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Magnetic materials with high Faraday effect were studied for fiber—optic
magnetic fields and electric currents sensors design. Different compositions of
semimagnetic semiconductors were grown to measure high frequency magnetic fields (up
to several GHz). For moderate frequency sensors < 50 MHz the most perspective
material was found to be Bi-substituted yttrium—iron gamete . Several ways to
achieve high sensitivity and wide frequency band are discussed. Sensors on the basis
of the investigated materials for various spheres of applications were constructed.
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P. I. Nikitin M.D., "Fiber-optical magnetic field sensors based on Faraday effect in new materials," Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); https://doi.org/10.1117/12.2321906