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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 28 — Oct. 1, 2012
  • pp: 6708–6717

Polarization-induced noise in resonator fiber optic gyro

Huilian Ma, Zhen Chen, Zhihuai Yang, Xuhui Yu, and Zhonghe Jin  »View Author Affiliations


Applied Optics, Vol. 51, Issue 28, pp. 6708-6717 (2012)
http://dx.doi.org/10.1364/AO.51.006708


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Abstract

An optical fiber ring resonator (OFRR) is the key rotation-sensing element in the resonator fiber optic gyro (R-FOG). In comparing between different OFRR types, a simulation model that can apply to all cases is set up. Both the polarization crosstalk and polarization-dependent loss in the coupler are fully investigated for the first time to our knowledge. Three different splicing schemes, including a single 0°, a single 90°, and twin 90° polarization axis rotated spices, are compared. Two general configurations of the OFRR are considered. One is a reflector OFRR, the other is a transmitter OFRR. This leads to six different OFRR types. The output stability of the R-FOG with six OFRR types is fully investigated theoretically and experimentally. Additional Kerr noise due to the polarization fluctuation is discovered. The OFRR with twin 90° polarization axis rotated splices is of lower additional Kerr noise and hence has better temperature stability. As the coupler is polarization dependent, we notice that in a reflector OFRR, the straight-through component of the output lightwave, which can be isolated by a transmitter configuration, would produce large polarization fluctuation–induced noise. The experimental results show that the bias stability of the transmitter OFRR is 8 times improved over that of the reflector OFRR, which is in accord with the theoretical analysis. By the analysis and experiments above, it is reasonable to make a conclusion that an R-FOG based on a transmitter OFRR with twin 90° polarization axis rotated splices is of better temperature stability and smaller additional Kerr effect noise.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2800) Fiber optics and optical communications : Gyroscopes

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 9, 2012
Revised Manuscript: August 29, 2012
Manuscript Accepted: August 29, 2012
Published: September 24, 2012

Citation
Huilian Ma, Zhen Chen, Zhihuai Yang, Xuhui Yu, and Zhonghe Jin, "Polarization-induced noise in resonator fiber optic gyro," Appl. Opt. 51, 6708-6717 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-28-6708

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