医用高功率CTH∶YAG脉冲激光器  

High-powermedical CTH∶YAG Pulse Laser

作　　者：刘沛沛[1] 龙井宇[1] 杨凯[1] 任兆玉[1] 白晋涛[1] 

机构地区：[1]西北大学光子学与光子技术研究所,西安710069

出　　处：《光子学报》2009年第9期2184-2187,共4页Acta Photonica Sinica

基　　金：陕西省科技创新重大项目资助

摘　　要：为了提高Cr,Tm,Ho∶YAG激光器的输出功率对CTH∶YAG准三能级能量转移特性进行了分析,优化了谐振腔的腔长及腔镜的曲率半径,采用了高漫反射陶瓷聚光腔.结果表明,有效抽运光谱带的反射率高达95%,在冷却水温为19℃,抽运能量为159 J时,获得最大单脉冲输出能量5.11 J,斜率效率5.6%.In order to increase Cr ： Tm： Ho ： YAG laser power, the cavity length and radius of high reflectivity concave mirror are optimized through analysis of energy transfer among the quasi-three-level nature. The ceramic pumping cavity with high diffuse reflectivity of 95 % for effective pump band is used. The maximum laser pulse energy of 5. 11J at 1Hz repetition frequency with a maximum slope efficiency of 5.6% during the cooling water temperature is 19℃ and the input pump energy is 159J.

关 键 词：Cr:Tm:Ho∶YAG晶体 氙灯抽运 准三能级 单脉冲 

分 类 号：TN248.1[电子电信—物理电子学]