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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 23 — Nov. 5, 2012
  • pp: 25421–25431

Quadrature demodulation with synchronous difference for interferometric fiber-optic gyroscopes

Zinan Wang, Yi Yang, Yongxiao Li, Xiaoqi Yu, Zhenrong Zhang, and Zhengbin Li  »View Author Affiliations

Optics Express, Vol. 20, Issue 23, pp. 25421-25431 (2012)

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We propose a novel method of quadrature demodulation with synchronous difference for suppressing noise in interferometric fiber-optic gyroscopes (IFOGs). For an IFOG with sine wave phase modulation, an in-phase result and a quadrature result are obtained simultaneously by coherent detection. Eigenfrequency modulation is used and a phase shift of 45° is set between the modulation signal and the reference signal, so that two results have the same expectation of amplitude but with opposite signs. A synchronous difference procedure is carried out for output, in which signals are added up and common noise between two results is eliminated. Theoretical analysis and experimental results show that both short term noise and long term instability of the IFOG are reduced by this method. In experimental comparison with the traditional demodulation method on the same IFOG with a 1982 m fiber coil, this method reduces the bias drift from 0.040°/h to 0.004°/h.

© 2012 OSA

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

ToC Category:

Original Manuscript: July 13, 2012
Revised Manuscript: September 14, 2012
Manuscript Accepted: October 9, 2012
Published: October 25, 2012

Zinan Wang, Yi Yang, Yongxiao Li, Xiaoqi Yu, Zhenrong Zhang, and Zhengbin Li, "Quadrature demodulation with synchronous difference for interferometric fiber-optic gyroscopes," Opt. Express 20, 25421-25431 (2012)

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  1. E. J. Post, “Sagnac effect,” Rev. Mod. Phys.39, 475–493 (1967). [CrossRef]
  2. H. J. Arditty and H. C. Lefèvre, “Sagnac effect in fiber gyroscopes,” Opt. Lett.6, 401–403 (1981). [CrossRef] [PubMed]
  3. R. A. Bergh, H. C. Lefèvre, and H. J. Shaw, “An overview of fiber-optic gyroscopes,” J. Lightwave Technol.2, 91–107 (1984). [CrossRef]
  4. H. C. Lefèvre, The Fiber-Optic Gyroscope (Artech House, 1993).
  5. G. B. Malykin, “On the ultimate sensitivity of fiber-optic gyroscopes,” Tech. Phys.54, 415–418 (2009). [CrossRef]
  6. I. A. Andronova and G. B. Malykin, “Physical problems of fiber gyroscopy based on the Sagnac effect,” Phys. Usp.45, 793–817 (2002). [CrossRef]
  7. P. Y. Chien and C. L. Pan, “Triangular phase-modulation approach to an open-loop fiber-optic gyroscope,” Opt. Lett.16, 1701–1703 (1991). [CrossRef] [PubMed]
  8. D. A. Jackson, A. D. Kersey, and A. C. Lewin, “Fibre gyroscope with passive quadrature detection,” Electron. Lett.20, 399–401 (1984). [CrossRef]
  9. J. Blake and I. S. Kim, “Distribution of relative intensity noise in signal and quadrature channels of a fiber-optic gyroscope,” Opt. Lett.19, 1648–1650 (1994) [CrossRef] [PubMed]
  10. X. Wang, C. He, and Z. Wang, “Method for suppressing the bias drift of interferometric all-fiber optic gyroscopes,” Opt. Lett.36, 1191–1193 (2011). [CrossRef] [PubMed]
  11. W. K. Burns, R. P. Moeller, and A. Dandridge, “Excess noise in fiber gyroscope sources,” IEEE Photonic. Tech. Lett.2, 606–608 (1990). [CrossRef]
  12. R. P. Moeller and W. K. Burns, “1.06-ptm all-fiber gyroscope with noise subtraction,” Opt. Lett.16, 1902–1904 (1991). [CrossRef] [PubMed]
  13. R. C. Rabelo, R. T. Carvalho, and J. Blake, “SNR enhancement of intensity noise-limited FOGs,” J. Lightwave Technol.18, 2146–2150 (2000). [CrossRef]
  14. P. Polynkin, J. Arruda, and J. Blake, “All-optical noise-subtraction scheme for a fiber-optic gyroscope,” Opt. Lett.25, 147–149 (2000). [CrossRef]
  15. R. Ulrich, “Fiber-optic rotation sensing with low drift,” Opt. Lett.5, 173–175 (1980). [CrossRef] [PubMed]
  16. K. Bohm, P. Marten, K. Petermann, E. Weidel, and R. Ulrich, “Low-drift fiber gyro using a superluminescent diode,” Electron. Lett.17, 352–353 (1981). [CrossRef]
  17. E. Jones and J. W. Parker, “Bias reduction by polarisation dispersion in the fibre-optic gyroscope,” Electron. Lett.22, 54–56 (1986). [CrossRef]
  18. S. L. A. Carrara, B. Y. Kim, and H. J. Shaw, “Bias drift reduction in polarization-maintaining fiber gyroscope,” Opt. Lett.12, 214–216 (1987). [CrossRef] [PubMed]
  19. O. Çelikel and F. Sametoǧlu, “Assessment of magneto-optic Faraday effect-based drift on interferometric single-mode fiber optic gyroscope (IFOG) as a function of variable degree of polarization (DOP),” Meas. Sci. Technol.23, 025104 (2012). [CrossRef]
  20. A. Lompado, J. C. Reinhardt, L. C. Heaton, J. L. Williams, and P. B. Ruffin, “Full Stokes polarimeter for characterization of fiber optic gyroscope coils,” Opt. Express17, 8370–8381 (2009). [CrossRef] [PubMed]
  21. Y. Yang, Z. Wang, and Z. Li, “Optically compensated dual-polarization interferometric fiber-optic gyroscope,” Opt. Lett.37, 2841–2843 (2012). [CrossRef] [PubMed]
  22. D. Kim and J. Kang, “Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with reduced temperature sensitivity,” Opt. Express12, 4490–4495 (2004). [CrossRef] [PubMed]
  23. Y. Zhao, Y. Zheng, Y. Lin, and B. Li, “Step by step improvement of measurement methods for earth’s rotary rate using fiber optic gyro,” Measurement44, 1177–1182 (2011). [CrossRef]
  24. F. L. Walls and D. W. Allan, “Measurements of frequency stability,” Proc. IEEE74, 162–168 (1986). [CrossRef]
  25. O. Çelikel and S. E. San, “Design details and characterization of all digital closed-loop interferometric fiber optic gyroscope with superluminescent light emitting diode,” Opt. Rev.16, 35–43 (2009). [CrossRef]

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