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对于激光二极管侧面泵浦的固体激光器， 泵浦光和振荡光场为空间分布函数， 利用四能级速率方程， 得到了激光器输入和输出参数之间的关系。分析了空间参数对激光器输出特性的影响， 找到了最佳参数。
For the laser diode side-pumped solid state laser, the pump light and the oscillating light field are the spatial distribution functions. The relationship between the laser input and output parameters is obtained by using the four-level rate equation. The influence of spatial parameters on laser output characteristics was analyzed and the best parameters were found.