中国激光, 2019, 46 (12): 1201002, 网络出版: 2019-12-02   

氦氖气体参数对环形激光陀螺光强输出的影响 下载: 972次

Influences of He-Ne Gas Parameters on Light Intensity of Ring Laser Gyro
作者单位
国防科技大学前沿交叉学科学院, 湖南 长沙 410073
摘要
为探究腔内各气体的压强比对激光陀螺特性的影响,从等离子色散函数出发,探究气压气比对环形腔内光强调谐曲线的影响,同时使用自制的环形激光陀螺进行工程试验。搭建了一套可操作性强、气压气比可调节且可实时监测的充气实验装置,得到该激光陀螺输出增益随气压气比的变化关系,从而得出最佳的工作气压气比。结果表明:激光输出增益首先随着气压的增大而增大,当气压增大到某一气压值时,输出增益达到最大值;之后输出增益随着气压的增大而减小,当气压增大到某一临界值时无激光输出。
Abstract
In this study, the influence of the gas pressure ratio of helium to neon on the characteristics of a ring laser gyro is investigated. The relation between the power tuning curve and the gas pressure ratio in a ring laser cavity is theoretically derived from the plasma dispersion function. A specific type of a ring laser gyro is used for experimental measurements. An inflatable experimental device with strong operability,adjustable gas pressure ratio, and real-time monitoring of the gas parameters is presented. The relation between the output gain of the laser gyro and gas pressure ratio is determined. The optimal working gas pressure ratio of helium to neon is also determined. Experimental results indicate a positive relation between the laser output gain and gas pressure within a certain range. The output gain reaches its maximum at a certain pressure value and then falls with an increase of the pressure to the point, where the laser output becomes zero.

徐小清, 谭中奇, 樊振方, 张斌, 赵洪常. 氦氖气体参数对环形激光陀螺光强输出的影响[J]. 中国激光, 2019, 46(12): 1201002. Xiaoqing Xu, 谭中奇, Zhenfang Fan, Bin Zhang, Hongchang Zhao. Influences of He-Ne Gas Parameters on Light Intensity of Ring Laser Gyro[J]. Chinese Journal of Lasers, 2019, 46(12): 1201002.

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