Mirrors movement-induced equivalent rotation effect in ring laser gyros.
Mirrors movement-induced equivalent rotation effect in ring laser gyros.
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DOI：
10.1364/oe.21.014458
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发表时间：
2013-06
期刊：
影响因子：
3.8
通讯作者：
Guangfeng Lu;Zhenfang Fan;Shao-min Hu;H. Luo
中科院分区：
文献类型：
--
作者：
Guangfeng Lu;Zhenfang Fan;Shao-min Hu;H. Luo
本文采用矩阵光学方法研究了环形激光陀螺中闭环光路的变化与相邻两个球面反射镜运动之间的关系。在保持闭环光路总长度不变的情况下，将一个球面反射镜向前推，另一个球面反射镜向后拉，首次发现了闭环光路的等效旋转。数值模拟和实验结果表明，等效旋转速率与反射镜的运动速度成正比。
In this letter, the relationship between the change of the closed-loop optical path and the movement of two adjacent spherical mirrors in ring laser gyros is investigated by matrix optical approach. When one spherical mirror is pushed forward and the other is pulled backward to maintain the total length of the closed-loop optical path constant, an equivalent rotation of the closed-loop optical path is found for the first time. Both numerical simulations and experimental results show the equivalent rotation rate is proportional to the velocities of the mirrors' movement.