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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 16 — Aug. 15, 2012
  • pp: 3342–3344

Reduction of polarization-fluctuation induced drift in resonator fiber optic gyro by a resonator integrating in-line polarizers

Huilian Ma, Xuhui Yu, and Zhonghe Jin  »View Author Affiliations


Optics Letters, Vol. 37, Issue 16, pp. 3342-3344 (2012)
http://dx.doi.org/10.1364/OL.37.003342


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Abstract

A method to decrease the polarization-fluctuation induced drift in a resonator fiber optic gyro (R-FOG) is demonstrated by inserting two in-line polarizers in a polarization-maintaining fiber resonator with twin 90° polarization-axis rotated splices. The in-line polarizers attenuate the unwanted resonance by introducing high loss for the unwanted eigenstates of polarization in the resonator. Compared to the resonator without in-line polarizers, the polarization-fluctuation induced drift is reduced by 6×103 times. The desired resonance in the resonator can keep excellent stability in a wide temperature range; thus the temperature-dependent polarization-fluctuation drift in the R-FOG is sufficiently suppressed. A typical bias stability of 4.7°/h over 6500 s with an integration time of 10 s has been carried out. To the best of our knowledge, the long-term bias stability and high temperature stability are the best ever demonstrated in an R-FOG.

© 2012 Optical Society of America

OCIS Codes
(060.2800) Fiber optics and optical communications : Gyroscopes
(120.5790) Instrumentation, measurement, and metrology : Sagnac effect
(230.5750) Optical devices : Resonators

ToC Category:
Optical Devices

History
Original Manuscript: May 28, 2012
Revised Manuscript: July 1, 2012
Manuscript Accepted: July 7, 2012
Published: August 6, 2012

Citation
Huilian Ma, Xuhui Yu, and Zhonghe Jin, "Reduction of polarization-fluctuation induced drift in resonator fiber optic gyro by a resonator integrating in-line polarizers," Opt. Lett. 37, 3342-3344 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-16-3342


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References

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