根据高功率激光装置中波前畸变分段的特点，提出通过构造不同频段的波前畸变来研究相干合成结果与波前畸变之间的关系。以神光-III原型装置的结构和参数为模型，利用蒙特卡罗方法进行了数值模拟，分析了低频、中高频波前畸变对相干合成的影响，并给出了低频和中高频波前畸变与相干合成结果的对应关系。为高功率激光装置中进行波前畸变控制, 实现相干合成提供一种分析思路和理论参考。

Based on the segmentation characteristics in space frequency of wavefront distortion, a new method of constructing wavefront distortion is proposed to study the relationship between wavefront distortion and coherent beam combination (CBC). Taking the structure and parameters of SG- III technical integration line as a model and using Monte-Carlo method to realize the simulation, the effects of low and midhigh frequency wavefront distortions are analyzed. Moreover, the corresponding relationships between the low, mid- high frequency wavefront distortion and the result of CBC are established respectively. The results provide an analysis thought and a theoretical reference of wavefront distortion correction for CBC in highpower laser facilities.