固体棒状热容激光器的热分析  

Dynamic temperature profiles in heat capacity laser rods

作　　者：汪晓波[1] 许晓军[1] 陆启生[1] 

机构地区：[1]国防科学技术大学光电科学与工程学院,长沙410073

出　　处：《强激光与粒子束》2007年第4期589-592,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金资助课题(60378009)

摘　　要：计算出固体棒状热容激光器在不同散热边界条件下的温度分布和随时间的演变,与实验测量的结果进行了对比。计算结果表明:激光器工作在热容模式时,不同散热边界条件下激光介质内的温度分布在激光发射期间区别不大,激光发射期间,激光介质内的温度分布主要取决于泵浦光的吸收。但是散热过程中的不同散热边界条件下温度分布演化大不相同,此时的温度分布主要取决于散热边界条件。In this paper, contour plots comparing measured and calculated temperature profiles are presented. The results suggest numerical calculations accord with the measurements for dynamic temperature profiles in heat-capacity laser rods. During lasing process, the cooling condition almost doesn＇t influence the dynamic temperature profiles in the active medium. The dynamic temperature profiles in the active medium are dependent on the pump absorption. However, the dynamic temperature profiles in the active medium with different cooling conditions are distinct during the cooling process.

关 键 词：热容激光器 温度分布 数值计算 实验测量 棒状介质 

分 类 号：TN248.1[电子电信—物理电子学]