YAG物理特性参量对LD泵浦固体激光器热效应的影响  

Influence of YAG Materials Property on Thermal Effects in LD Side Pumping Solid State Lasers

作　　者：岱钦[1] 李新忠[1] 王希军[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室

出　　处：《光子学报》2007年第12期2201-2204,共4页Acta Photonica Sinica

基　　金：中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室基金(DA04Q05)资助

摘　　要：针对LDA三角均布侧泵结构激光棒,采用有限元方法,在YAG介质热传导率和热膨胀系数的温度无关和相关条件下,比较分析了激光介质的温度和热应力分布.数值模拟结果表明,考虑YAG介质特性参量的温度相关性时介质的热效应将变得更加严重,并且泵浦越强,YAG特性参量的温度相关性对热效应的作用越明显.因此在设计激光器,特别是大功率激光器时应对激光介质物性参量的温度相关性加以考虑.In solid state laser crystal, which is pumped in temperature and stress distribution are calculated using symmetrical trigonal mode by laser diode array,the finite element method at two different conditions： the materials properties vary with the temperature or not. The results show that thermal effect becomes serious due to the temperature dependence of YAG materials properties, which is more obvious with the increase of pumping power. So the variation of the material properties vs the temperature should be paid more attention during the designing process of the high power laser systems.

关 键 词：物性参量 温度相关 LD泵浦 固体激光器 

分 类 号：TN248.1[电子电信—物理电子学]