石英晶体温度效应对四频差动激光陀螺中光场偏振特性的影响

杨建强, 廖丹

杨建强, 廖丹. 石英晶体温度效应对四频差动激光陀螺中光场偏振特性的影响[J]. 应用光学, 2009, 30(3): 514-518.
引用本文: 杨建强, 廖丹. 石英晶体温度效应对四频差动激光陀螺中光场偏振特性的影响[J]. 应用光学, 2009, 30(3): 514-518.
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YANG Jian-qiang, LIAO Dan. Influence of quartz crystal temperature effect on optical polarization characteristics of four-frequency differential laser gyro[J]. Journal of Applied Optics, 2009, 30(3): 514-518.
Citation: YANG Jian-qiang, LIAO Dan. Influence of quartz crystal temperature effect on optical polarization characteristics of four-frequency differential laser gyro[J]. Journal of Applied Optics, 2009, 30(3): 514-518.
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石英晶体温度效应对四频差动激光陀螺中光场偏振特性的影响

  • 国防科技大学光电科学与工程学院,湖南长沙410073

详细信息
    通讯作者:

    杨建强（1982－），男，河南新蔡人，在读博士生 ，主要从事环形激光器的理论研究工作。

  • 中图分类号: TN241.5

Influence of quartz crystal temperature effect on optical polarization characteristics of four-frequency differential laser gyro

  • College of Opto-electronics Science and Engineering,National University of Defense Technology,Changsha 410073,China

摘要

    摘要
  • 摘要: 为研究石英晶体温度效应对四频差动激光陀螺的影响，从陀螺的自再现传播矩阵出发，结合石英晶体旋光率随温度变化的经验公式，利用琼斯矩阵求本征模的方法，得出了四频差动激光陀螺腔内光场本征偏振态与温度的关系并进行了数值分析，得到椭圆度和左右旋差损随温度变化的曲线。结果表明，石英晶体温度效应对偏振特性的影响与反射镜片的振幅反射率和反射相移有密切关系，对于典型陀螺参量，在-60℃～60℃范围内石英晶体温度效应导致左右旋差损从0增加至10-6量级, 椭圆度从0.122增至0.138。
    Abstract: Proceeding from the propagating Jones matrix of laser, the relation between the eigenpolarization and the temperature in the four-frequency differential laser gyro was obtained in combination with the empirical formula of quartz crystal rotatory power versus temperature and the method of calculating eigenvectors, for the research on the influence of the quartz crystal temperature effect on the four-frequency differential laser gyro. The variation curves of the light ellipticity and the differential loss with the temperature were acquired by the numerical analysis. The result shows that the influence of quartz crystal temperature effect on the optical polarization characteristics is closely related to the amplitude reflectivity and the phase shift of the mirror. For typical gyro parameters, the differential loss and the ellipticity increase respectively from 0 to 10-6 and from 0.122 to 0.138 when the quartz crystal temperature is in the range of -60℃ to 60℃.
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  • 刊出日期:  2009-05-09

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