Abstract
We have investigated theoretically the possibility of control of magnetic speckle-pattern rotation in gyrotropic optical fiber coated by conductive nanoshell. Investigation has been carried out for graphene and silver coated fibers. In graphene-coated fiber speckle-pattern rotation may be tuned by both magnetic field and chemical potential of graphene. It is shown that fiber coating by conductive nanoshell may leads to suppression of magnetic speckle-pattern rotation even for low-gyrotropic quartz fiber.
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