Zero-deviation effect in a resonator optic gyro caused by nonideal digital ramp phase modulation

Ma, Huilian; Zhang, Guhong; Li, Mucheng; Jin, Zhonghe

doi:10.1016/j.optlaseng.2010.05.012

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…One stair width is equal to the optical transmission time in the fiber ring resonator. If there is any deviation between the width of one stair and the transmission time, an error appears at the RFOG output [12]. For the waveguidetype RMOG with a centimeter-scale resonator, the optical transmission time in the waveguide ring resonator is at ns level.…”

Section: Introductionmentioning

confidence: 99%

Performance of closed-loop resonant micro-optic gyro with hybrid digital phase modulation

Zhang

Wang

et al. 2015

SPIE Proceedings

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A double closed-loop resonant micro optic gyro (RMOG) employing a hybrid digital phase modulation technique is demonstrated, showing encouraging progress. In this hybrid modulation scheme, the width of one stair of the stair-like digital serrodyne wave is optimized according to the rise time of the digital-to-analogue converter to obtain the maximum sideband suppression. Based on the optimum parameters of the hybrid modulation scheme, a typical bias stability of 0.05/s in 1 hr is demonstrated in an RMOG with a silica waveguide ring resonator having a ring length of 7.9 cm. This is the best long-term performance which has ever been reported in an RMOG to our knowledge.

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Section: Introductionmentioning

confidence: 99%