圆柱体腔振动稳定性研究  

Study on vibrational stabilization of cylindrical cavities

作　　者：曹云玖[1] 刘烨[1] 陈光龙[1] 徐红霞[1] 

机构地区：[1]上海工程技术大学基础教学学院,上海201620

出　　处：《激光技术》2012年第2期265-267,共3页Laser Technology

基　　金：上海工程技术大学校基金资助项目(2009xy21)

摘　　要：为了降低环境振动对光学谐振腔稳定性的影响,设计了对振动不敏感的超稳腔,采用有限元数值模拟的方法,通过改变相关参量,对两U型片支撑和双横梁支撑两种圆柱体腔的支撑方式进行了数值模拟,得到了腔体的形变图。结果表明,通过改进腔的支撑方式和调整支撑位置,可以降低腔长对振动的敏感度,找到腔长变化最小且两腔镜平行的关键支撑位置。该结果可用于激光稳频和高精密激光光谱实验中。In order to decrease vibrational susceptibility of the optical cavities produced by environmental vibration and design ultra stable optical cavities, based on the finite element numerical analysis, the cylindrical cavities supported with double U-shaped plates and double beams were analyzed by varying the relevant parameters and the strain distribution were got. The results show that vibrational susceptibility of the optical cavities is decreased by optimizing mounting method and supporting position and the critical supporting position with minimum optical length and parallel mirrors is found. These results can be applied to laser frequency stabilization and high precision laser spectroscopy.

关 键 词：激光光学 光学腔 数值分析 关键支撑位置 

分 类 号：TN243[电子电信—物理电子学]