Abstract

This paper presents the results of experimental and theoretical studies of the optical characteristics of fibers made from silicate glasses with coatings in the form of a polycrystalline film or nanoparticles of vanadium dioxide in the wavelength range 0.8–1.8 ?m. It is shown that the variation of the optical properties of the coating with temperature causes efficient attenuation modulation of the optical signal in the fiber. The modulation depth in fibers with a nanocomposite coating is a factor of 3–4 times greater than in fibers with a thin-film coating. This is because plasma resonance is present in nanoparticles of vanadium dioxide in the metallic phase.

© 2013 Optical Society of America

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