基于SBS补偿激光棒损伤引起的激光束的相位畸变  

Compensation of Laser Phase Aberration Caused by Damaged Laser Rod Based on SBS

作　　者：屈军[1] 高伟[1] 梁军[1] 

机构地区：[1]安徽师范大学物理系,安徽芜湖241000

出　　处：《光电子．激光》2006年第2期155-157,共3页Journal of Optoelectronics·Laser

基　　金：安徽省教育厅自然科学基金资助项目(2005KJ236);安徽省高等学校青年教师科研资助计划自然科学资助项目(2005JQ1164)

摘　　要：报道了在ND:YAG激光器上利用受激布里渊散射(SBS)补偿腔内插入用HF轻度腐蚀的普通薄玻璃片模拟激光棒表面的损伤而引起的相位畸变,实验给出了不同参数条件下的输出能量、脉冲和远场光斑的三维分布情况。当轴运电压为1 000 V时,经过补偿的输出光束能量为50 MJ左右,起伏性在10%左右,三维光束分布的畸变得到补偿。实验表明,这是一种有效简易提高输出光束质量的方法。We report a new use of stimulated Brillouin scattering（SBS） to compensate laser phase aberration caused by the face of damaged laser rod which is simulated by the glass corroded by HF. The results of output energy and pulse widths and the three-dimensional distribution of far field facula under different conditions were given. The output energy of SBS cavity will reach 50 mJ,the fluctuation of it is about 10%. The experiments indicate it is a easy and validity method to improve the quality of the output beam.

关 键 词：受激布里渊散射(SBS) 相位补偿 光斑 

分 类 号：O437.2[机械工程—光学工程]