中文摘要：

针对2.09μm单频Ho∶YAG激光器种子注入实验中声光布拉格衍射对不同偏振态的影响进行了理论分析,由于不同偏振态在声光介质中的折射率不同,计算了s偏振光和p偏振光通过声光晶体后的最大偏移距离,同时对两束偏振光经过布拉格衍射进入F-P腔后的输出信号进行了理论分析计算及仿真,并通过实验进行了验证。

英文摘要：

The influence of acousto- optic Bragg diffraction on the different polarization states was analyzed theoretically in 2. 09 μm single frequency Ho ∶ YAG laser seed injection experiment. As the different polarization states have different refractive indexes in an acousto- optic medium,the maximum offset distance was calculated when S polarized light and P polarized light passed acousto- optic crystal. The output signal is calculated and simulated after two diffracted polarized lights come into F- P cavity,and it is verified by the experiment.