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

Jianjie Zhang; Linglan Wang; Huilian Ma; Zhonghe Jin

doi:10.1117/12.2184125

20 July 2015 Performance of closed-loop resonant micro-optic gyro with hybrid digital phase modulation

Jianjie Zhang, Linglan Wang, Huilian Ma, Zhonghe Jin

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 965505 (2015) https://doi.org/10.1117/12.2184125
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

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.

Citation Download Citation

Jianjie Zhang, Linglan Wang, Huilian Ma, and Zhonghe Jin "Performance of closed-loop resonant micro-optic gyro with hybrid digital phase modulation", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965505 (20 July 2015); https://doi.org/10.1117/12.2184125

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