分析了传导冷却与端面抽运的Nd:YAG板条激光器边缘畸变的形成原因,并进行了抑制边缘畸变的实验研究。根据实验参数进行了数值模拟,模拟结果与实验结果吻合。以液态环氧胶为导热材料对激光器板条侧面进行实时冷却,可增加板条内部荧光从侧面逸出的能量比例,从而减小放大自发辐射,边缘畸变量峰谷值约减小50%。该方法有利于提高板条激光器的光束质量和输出功率。 The reason of the edge distortion of Nd: YAG slab laser induced by conduction cooling and end-pumped pumping is analyzed, and the experimental research of suppressing the edge distortion is carried out. The numerical simulation is carried out according to the experimental parameters. The simulation results are in good agreement with the experimental ones. The liquid epoxy glue as the heat transfer material on the laser slab side real-time cooling can increase the internal fluorescence of the slab escape from the side of the energy ratio, thereby reducing the amplification of spontaneous emission, the edge of the peak value of the distortion is reduced by about 50%. The method is beneficial to improve the beam quality and output power of the slab laser.