Recent progresses in hollow-core photonic crystal fibers (HC-PCF) renewed interest for resonant fiber optic gyroscope (R-FOG) [1]. Indeed, hollow-core fibers, where light propagates mostly in air, have the advantage of significantly reducing the Kerr effect, known as a strong limitation on the bias stability of the R-FOG [2]. However, Rayleigh backscattering is still an important source of noise as it forbids the measurements of low rotation rates [3].

© 2017 IEEE

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