偏振串扰对光纤陀螺零漂及随机游走影响的研究

发布时间：2018-01-24 10:03

本文关键词： 光通信光纤陀螺偏振串扰静态参数　出处：《光学学报》2014年12期 　论文类型：期刊论文

【摘要】：针对保偏光纤陀螺静态参数受光路偏振串扰误差的影响而使陀螺精度受到制约的问题,从实际应用的角度,研究了保偏光纤陀螺光路中由于各光学器件不理想和熔接点对轴角度误差等因素引起偏振串扰误差的机制。基于琼斯矩阵和相干矩阵,并引入随温度变化的保偏光纤双折射变量,建立了变温环境下保偏光纤陀螺的光路传输模型,对变温环境下偏振串扰误差对保偏光纤陀螺零漂和随机游走的影响进行了理论分析和估算。同时开展了变温环境下光纤环偏振串扰对其静态参数影响的相关实验。实验结果与模型分析结果基本一致,表明该模型是合理的。
[Abstract]:In view of the problem that the static parameters of polarization-maintaining fiber gyroscope are restricted by the polarization crosstalk error of optical path, the precision of the gyroscope is restricted from the point of view of practical application. The mechanism of polarization crosstalk error in polarization-maintaining fiber optic gyroscope (fog) is studied based on Jones matrix and coherence matrix. The optical transmission model of PMF gyroscope under variable temperature is established by introducing the birefringence variable of PMF with temperature change. The influence of polarization crosstalk error on the zero drift and random walk of polarization maintaining fiber gyroscope is theoretically analyzed and estimated. At the same time, some experiments on the influence of optical fiber ring polarization crosstalk on its static parameters are carried out. The experimental results are in good agreement with the results of the model analysis. It is shown that the model is reasonable.
【作者单位】：江南大学理学院;天津大学精密仪器与光电工程学院;苏州光环科技有限公司;GeneralPhotonicsCorporatoin;
【分类号】：TN966
【正文快照】： p膒苝蘰蜺SA1引言干涉式光纤陀螺(FOG)是一种用于惯性导航的角速度传感器,在惯性制导、车辆定位、地下探测等诸多军用和民用领域中都有着广泛的发展和应用前景。在实际生产和应用过程中,由于光源偏振度波动[1],光路中各器件尾纤之间的熔接点缺陷,Y波导消光比不理想以及保偏(PM

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