建立了一个物理模型描述了光泵铯蒸气激光的动力学过程和激光机理.结合实验参量,经数值求解该模型,定量分析了抽运光参量、缓冲气压和输出镜反射率等对激光输出功率和光光效率产生的影响,得到了与实验基本一致的模拟结果.表明该模型较好地反映了光泵銫蒸气激光的动力学机理和发射过程,为该类激光的优化设计提供了借鉴和参考. A physical model was established to describe the dynamic process and laser mechanism of the cesium vapor laser with optical pump.According to the experimental parameters, the model was solved numerically to quantitatively analyze the effects of the pump parameters such as pumping light pressure, buffer gas pressure and output mirror reflectivity on the laser output power And the effect of light and light efficiency, the simulation results basically consistent with the experiment are obtained, which shows that the model can well reflect the kinetics mechanism and emission process of cesium vapor laser with optical pump, and provide reference and reference for the optimal design of this kind of laser .