激光二极管泵浦固体激光器低敏感度谐振腔研究

提出了对称偏移因子、角扰动失谐率二个参量用来指导谐振腔的设计,使激光二极管泵浦固体激光器谐振腔对机械扰动具有较低的敏感性.在对各个光学元件对称轴偏移量进行定量描述的基础上,提出对称偏移因子.当对称偏移因子很小时,激光器在光学元件的平移扰动下具有较好的稳定性.在对光学元件角度偏转扰动定量描述的基础,提出了角扰动失谐率,当角扰动失谐率较小时,激光器在光学元件角度变化时,具有较好的稳定性.所有的设计方法均应用于凹凹腔进行了分析,并对一些现象进行了实验测量.

Study on Low-Sensitiveness Cavity of Diode Pumped Solid-state laser

Based on two parameters,named as asymmetry factor and angle mismatching rate,the low-sensitiveness cavity is designed.The asymmetry factor is defined to mark the asymmetrical effect on the laser beam of the position disturbing.In order to describe the effect of the elements′ angle alteration,angle mismatching rate is introduced under the circumstance of angle turbulence occurring.Both parameters are used in the concave-concave cavity and it proved to be valid by experiments data.