Nd:YAG板条激光器边缘畸变抑制  

Edge Distortion Suppressingin Nd:YAG Slab Laser

作　　者：李密[1,2,3] 胡浩[1,2] 唐淳[1,2] 雷军[1,2] 石勇[1,2] 陈小明[1,2] 周唐建[1,2] 李建民[1,2] 吕文强[1,2] 赵娜[1,2] 邬映臣[1,2] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900 [2]中国工程物理研究院高能激光科学与技术重点实验室,四川绵阳621900 [3]中国工程物理研究院研究生院,北京100088

出　　处：《光学学报》2016年第12期150-154,共5页Acta Optica Sinica

摘　　要：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 causation of edge distortion in conduction-cooled and end-pumped Nd：YAG slab laser is analyzed and the experiment to suppress the slab edge distortion is conducted.The numerical simulation is done based on the experimental paramters indicating the result is consistent with the experimental one.The usage of the liquid epoxymucilage as heat conduction material to make a real-time cooling of the laser slab side can increase the energy ratio of fluorescence escaping from the laser slab side,which results in the reduction of the amplified spontaneous emission and the edge distortion peak-vallege value by 50%.This method possesses the advantage of enhancing the slab laser beam quality and output power.

关 键 词：激光技术 板条激光器 透射波前 边缘畸变 传导冷却 

分 类 号：TN248.1[电子电信—物理电子学]