2 June 2014 Low noise and low drift in a laser-driven fiber optic gyroscope with a 1-km coil
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91570E (2014) https://doi.org/10.1117/12.2059692
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
We report an experimental fiber optic gyroscope (FOG) utilizing a 1085-m coil of 8-cm diameter driven with a laser of 10- MHz linewidth, with a record rotation-rate noise as low as 0.2 deg/h/√Hz and a drift below 0.038 deg/h. Simulations and comparison to the measured performance of a similar 150-m FOG show that the noise is limited approximately equally by coherent backscattering and polarization coupling in the sensing coil, and unaffected by the Kerr effect.
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J. N. Chamoun, J. N. Chamoun, A. Evans, A. Evans, F. A. Mosca, F. A. Mosca, M. J. F. Digonnet, M. J. F. Digonnet, } "Low noise and low drift in a laser-driven fiber optic gyroscope with a 1-km coil", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91570E (2 June 2014); doi: 10.1117/12.2059692; https://doi.org/10.1117/12.2059692
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