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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...
The prior art of the ultrafast laser gyroscopes goes back to 1981 when R.L. Fork et. al demonstrated colliding-pulse mode-locking [1] and the further discovery of the temporal overlapping of these pulses in 1990 [2]. Direct rotation measurements using laser gyroscopes are known to be more precise compared to the passive fibre optic devices, where the relative phase shift between the beams is retrieved...
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