Acta Photonica Sinica, Volume. 34, Issue 9, 1320(2005)
Study on Kerr-Effect-Induced Bias Reduction Method for Resonator Fiber Optic Gyroscope
The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.The results show that the Kerr-effect-induced bias relates to the light intensity difference between two inverse lightwaves,and the amplitudes of square-wave frequency modulation of these inverse lightwaves also affect it.Through proper adjustment to frequency modulation amplitude,the Kerr-effect-induced bias can be effectively reduced.This method for Kerr-effect-induced bias reduction utilizing the characteristic of square-wave frequency modulation,need without any additional optical devices,has low intensity modulation frequency requirement.And it is a effective method for Kerr-effect-induced bias reduction in close-loop digital R-FOG.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Study on Kerr-Effect-Induced Bias Reduction Method for Resonator Fiber Optic Gyroscope[J]. Acta Photonica Sinica, 2005, 34(9): 1320