Volume 32 Issue 12
Dec.  2006
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Li Yan, Ou Pan, Zhang Chunxi, et al. Influence of source spectrum on bias stability of interference fiber optic gyroscopes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(12): 1439-1442. (in Chinese)
Citation: Li Yan, Ou Pan, Zhang Chunxi, et al. Influence of source spectrum on bias stability of interference fiber optic gyroscopes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(12): 1439-1442. (in Chinese)

Influence of source spectrum on bias stability of interference fiber optic gyroscopes

  • Received Date: 05 Dec 2005
  • Publish Date: 31 Dec 2006
  • The Jones matrixes and mathematical model for the optical transmission of IFOG(interference fiber optic gyroscopes) were built based on the polarization IFOG, which uses Y waveguide integrated optical modulator, and depended on the parameters of the optical instruments. The polarization errors were analyzed theoretically, and the expressions of the polarization errors of IFOG were achieved. The influence of different source spectra on the bias stability of IFOG, caused by the polarization errors, was analyzed for the first time with the aid of source degree of polarization. By calculation, when the source degree of polarization changes linearly between 0~3% and other parameters are constants, the result that the narrower the spectrum, the larger the bias stability caused by the polarization errors is achieved. Simulation results give theoretical reference to the selection of source spectra for the IFOG.

     

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