板条结构Tm:Lu2O3倍半氧化物的热力学特性研究  

Research on Thermodynamic Characteristics of Slab Structure Tm:Lu2O3 Sesquioxide

作　　者：程小劲[1] 曹健东 范米 王媛 CHENG Xiaojin;CAO Jiandong;FAN Mi;WANG Yuan(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院

出　　处：《上海工程技术大学学报》2019年第3期193-197,202,共6页Journal of Shanghai University of Engineering Science

基　　金：国家自然科学基金资助项目(11604205)

摘　　要：相较于传统铥(Tm)掺杂的固体激光器(Tm:YAG,Tm:YLF等),掺Tm倍半氧化物具有低声子能量、高热导率的特点.在获得高功率、高光束质量2μm激光输出方面具有巨大的潜力.以板条结构Tm:Lu2O3为研究对象,借助Matlab和高斯迭代算法对其在高功率泵浦下的热分布进行分析,并将结果与Tm:YAG进行比较.分析结果表明,在相同的泵浦和冷却条件下,梯度掺杂Tm:Lu2O3具有更小的热梯度,有利于高效、高光束质量激光输出.Compared with traditional Tm-doped solid-state lasers(Tm:YAG,Tm:YLF,etc.),Tm-doped sesquioxide has great potential in obtaining high power and high beam quality 2 μm laser output because of the characteristics of low phonon energy and high thermal conductivity.Taking the slab structure TM:Lu2O3 as the research object,Matlab and Gauss iteration algorithm were used to analyze its thermal distribution under high power pumping and the results were compared with that of Tm:YAG.The results show that under the same pumping and cooling conditions,gradient doped Tm:Lu2O3 has a smaller thermal gradient,which is conducive to the high efficiency and high beam quality laser output.

关 键 词：掺铥倍半氧化物 板条结构 2ΜM激光 热分析 

分 类 号：TN248.1[电子电信—物理电子学]