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光强调谐曲线是激光陀螺工作模式选取和稳频的依据,而陀螺的增损比将直接决定光强调谐曲线的形式.为了提高陀螺准确度,本文对双同位素综合展宽情况下二频激光陀螺出光带宽与增损比之间的关系进行了分析计算,结果表明,激光陀螺的出光带宽与增损比之间存在单调递增的变化关系.数值仿真了不同增损比情况下陀螺的光强调谐曲线,结果表明,根据激光陀螺出光带宽与相邻纵横间隔相对大小的不同,其光强调谐曲线的形状可分三种,仿真与试验结果非常吻合.分析并试验验证了增损比选取不当对激光陀螺工程化应用可能产生的影响,给出了不同腔长情况下激光陀螺增损比合理选取的参考值,即应保证陀螺的出光带宽约等于其相邻纵横间隔.
The tuning curve of light intensity is the basis for selection and frequency stabilization of the working mode of the laser gyro, while the ratio of the gain and loss of the gyro will directly determine the form of the light intensity tuning curve.In order to improve the accuracy of the gyro, the dual-frequency laser gyro The results show that there is a monotone increasing relationship between the bandwidth and gain / loss ratio of the laser gyroscope.The numerical simulation of the light intensity tuning of the gyroscope under different loss ratios The results show that the shape of the light intensity tuning curve can be divided into three types according to the relative size of the laser light exit bandwidth and the adjacent vertical and horizontal spacing. The simulation and experimental results are in good agreement with each other. Laser gyroscope engineering application may give the impact, given different cavity length case of laser gyroscope loss than the reasonable selection of the reference value, that should ensure that the gyroscope light output bandwidth is approximately equal to its adjacent vertical and horizontal spacing.