Abstract
Bias thermal stability of a Fiber-Optic Gyroscope using Polarization-Maintaining Photonic Crystal (PM-PCF) was studied. And the thermal sensitivity of birefringence in PM-PCF and polarization cross talking in fiber coil was measured. By using an OCDP method, the polarization cross talking causing phase error of the FOG was analyzed. The contrast experiment result of the FOGs with PM-PCF coil and PMF coil showed that using PM-PCF instead of PMF can improve the FOG’s bias thermal stability by about 50%.
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