折射率非均匀性对激光陀螺背向散射的影响分析

蒋军彪; 马家君; 刘建宁

doi:doi:10.3788/lop53.061402

激光与光电子学进展, 2016, 53 (6): 061402, 网络出版: 2016-05-25

折射率非均匀性对激光陀螺背向散射的影响分析下载： 618次

Effect of Refractive Index Inhomogeneity on Backscattering of Laser Gyros

论文大纲

蒋军彪 ^1,*马家君 ²刘建宁 ³

作者单位

¹ 西安现代控制技术研究所, 陕西西安 710065

² 西安工业大学陕西省薄膜技术与光学检测重点实验室, 陕西西安 710032

³ 西安理工大学机械与精密仪器工程学院, 陕西西安 710048

激光光学激光陀螺背向散射折射率 laser optics laser gyros backscattering refractive index

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摘要

根据反射镜式激光陀螺和全反射棱镜式激光陀螺的结构特性，研究了两种激光陀螺的背向散射特性。理论分析了折射率非均匀性与背向散射的函数关系；根据反射镜式激光陀螺多层高反射膜结构和全反射棱镜式激光陀螺棱镜的全反射特性，分别推导了两种激光陀螺的背向散射系数计算方法和公式，并通过数值仿真与实验结果的比较验证了该方法的正确性。研究结果表明影响激光陀螺锁区的主要因素是非均匀损耗，次要因素是折射率的非均匀性。

Abstract

Backscattering characteristics of mirror laser gyros and total reflection prism laser gyros are studied based on their structure features. The functional relationship between the refractive index inhomogeneity and backscattering is analyzed theoretically. The methods and formulas to calculate backscattering coefficients of the two kinds of laser gyros are deduced according to the multi-layer high reflection film structure of the mirror laser gyro and the total reflection characteristic of the total reflection prism laser gyro. The correctness of the proposed method is verified by the comparison of numerical simulation and experimental results. The result shows that the non-uniform loss is the primary factor to influence the locking area of laser gyros and the refractive index inhomogeneity is the secondary factor.

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蒋军彪, 马家君, 刘建宁. 折射率非均匀性对激光陀螺背向散射的影响分析[J]. 激光与光电子学进展, 2016, 53(6): 061402. Jiang Junbiao, Ma Jiajun, Liu Jianning. Effect of Refractive Index Inhomogeneity on Backscattering of Laser Gyros[J]. Laser & Optoelectronics Progress, 2016, 53(6): 061402.

折射率非均匀性对激光陀螺背向散射的影响分析下载： 618次

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