光纤陀螺用光学器件的匹配优化

Optimization of parameters in the optical device of fiber optic gyroscope

针对光纤陀螺采用分立光学器件组装的特点,从光纤类型匹配、损耗匹配、偏振特性匹配几个方面讨论了对光纤陀螺精度的影响。给出了组成光纤陀螺各器件的理想匹配参数和光学器件的保偏尾纤连接时的对轴精度的优化,提高了光纤陀螺批量生产的一致性、稳定性、重复性以及光纤陀螺的性能。

Based on the characteristics of assembly of fiber optic gyro using discrete optical device,we discuss the influence on the accuracy of fiber optic gyro in the aspects of fiber type matching,loss matching,and polarization matching.We give ideal matching parameters of the device of fiber optic gyro and the optimization of shaft precision when polarization pigtail is connected.It increases the consistency of the fiber optic gyro production,and ensures batch stability,reproducibility and the performance of fiber optic gyroscope.