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Proceedings Paper

Low noise and low drift in a laser-driven fiber optic gyroscope with a 1-km coil
Author(s): J. N. Chamoun; A. Evans; F. A. Mosca; M. J. F. Digonnet
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Paper 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.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91570E (2 June 2014); doi: 10.1117/12.2059692
Show Author Affiliations
J. N. Chamoun, Stanford Univ. (United States)
A. Evans, Stanford Univ. (United States)
F. A. Mosca, iXBlue Sonar Systems Div. (France)
M. J. F. Digonnet, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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