基于共掺杂Dy-Tb∶YAG晶体的全固态黄光激光特性研究  

All-Solid-State Yellow-Laser Characteristics Based on Co-Doped Dy-Tb∶YAG Crystal

作　　者：李长磊[1,2] 姚文明 陈建生 田玉冰[1,2] 檀慧明 刘文鹏[3] 张庆礼 高静[1,2] Li Changlei;Yao Wenming;Chen Jiansheng;Tian Yubing;Tan Huiming;Liu Wenpeng;Zhang Qingli;Gaojing(University of Science and Technology of China,Hefei、Anhui 230026,China;Jiangsu Key Laboratory of Medical Optics,Suzhou Institute of Biom edical Engineering and Technology,China Academy of Sciences,Suzhou,Jiangsu 215163,China;Anhui Key Laboratory of Photonic Devices and Materials,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei,Anhui 230031,China)

机构地区：[1]中国科学技术大学,安徽合肥230026 [2]中国科学院苏州生物医学工程技术研究所,江苏省医用光学重点实验室,江苏苏州215163 [3]中国科学院安徽光学精密机械研究所,安徽省光子器件与材料重点实验室,安徽合肥230031

出　　处：《中国激光》2019年第11期53-58,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金(61405236);中国科学院联合基金(6141A01080302);江苏省自然科学青年基金(BK20180220);江苏省六大高峰人才项目(SWYY-285)

摘　　要：为提高激光上下能级的粒子反转速度,采用具有高声子能量的YAG晶体作为掺杂基质,通过多声子弛豫的方式加速6H13/2能级的粒子数消耗;同时引入与激光下能级能量相近的Tb^3+离子,实现Dy^3+∶6H13/2与Tb^3+∶7F4之间的共振能量转移,成功地减小了6H13/2的能级寿命,首次获得了582.1 nm的黄光激光输出。通过对比Dy∶YAG与Dy-Tb∶YAG的荧光光谱,分析了Tb^3+离子掺入对激光上能级寿命的影响。A YAG crystal exhibiting high phonon energy is used as the doping matrix to accelerate the depopulation of the 6H13/2 energy level by multi-phonon relaxation and improve the population inversion velocities of the laser upper and lower energy levels.Simultaneously,an energy transfer between Dy^3+∶6H13/2 and Tb^3+∶7F4 is achieved by introducing Tb^3+ions exhibiting an energy level similar to that exhibited by the laser lower level;thus,the energy lifetime of 6H13/2 is successfully reduced and the yellow laser output of 582.1 nm is obtained for the very first time.Furthermore,the effects of the Tb^3+ions on the lifetime of the laser upper energy levels are analyzed by comparing the Dy:YAG and Dy-Tb:YAG fluorescence spectra.

关 键 词：激光光学 黄光激光 半导体泵浦 Dy-Tb∶YAG 共振能量转移 交叉弛豫 

分 类 号：TN248.1[电子电信—物理电子学]