中国激光, 2019, 46 (11): 1101008, 网络出版: 2019-11-09
基于共掺杂Dy-Tb∶YAG晶体的全固态黄光激光特性研究 
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All-Solid-State Yellow-Laser Characteristics Based on Co-Doped Dy-Tb∶YAG Crystal
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 laser optics yellow laser diode pumping Dy-Tb∶YAG; resonant energy transfer cross relaxation
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。
Abstract
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.
李长磊, 姚文明, 陈建生, 田玉冰, 檀慧明, 刘文鹏, 张庆礼, 高静. 基于共掺杂Dy-Tb∶YAG晶体的全固态黄光激光特性研究[J]. 中国激光, 2019, 46(11): 1101008. Changlei Li, Wenming Yao, Jiansheng Chen, Yubing Tian, Huiming Tan, Wenpeng Liu, Qingli Zhang, Jing Gao. All-Solid-State Yellow-Laser Characteristics Based on Co-Doped Dy-Tb∶YAG Crystal[J]. Chinese Journal of Lasers, 2019, 46(11): 1101008.
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