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光子学报  2009 

Effect of the Principal Axes Angle-Offsets on Fiber-optic Gyroscope Output

Keywords: Fiber optic gyroscope,Principal axes angle-offsets,Polarization maintaining fiber,Phase errors,Polarization

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The effect of the principal axes angle-offsets of two splice points between the Y branch and PM fiber coil on the output errors of fiber-optic gyroscope(FOG) was investigated theoretically and experimentally.According to a simplified error model of the optical circuit of FOG,the relation between the phase error of FOG and the principal axes angle-offsets of the main coupling points was derived and emulated.Then using a closed-loop FOG,the variations of the bias and bias stability of FOG when changing the pr...


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