Tm^(3+):NaLa(MoO_4)_2晶体的1.9μm准连续激光输出  

Quasi-cw 1.9 μm Laser Emission of Tm^(3+):NaLa(MoO_4)_2 Crystal

作　　者：郭伟杰[1,2] 陈雨金[1] 林炎富[1] 罗遵度[1] 黄艺东[1] 

机构地区：[1]中国科学院福建物质结构研究所光电材料化学与物理重点实验室,福建福州350002 [2]中国科学院研究生院,北京100039

出　　处：《中国稀土学报》2009年第4期510-513,共4页Journal of the Chinese Society of Rare Earths

基　　金：中国科学院福建物质结构研究所创新重大项目(SZD08001-1)资助

摘　　要：以0.94mm厚的c切片7.5%(原子分数)Tm3+:NaLa(MoO4)2晶体为增益介质,采用795.5nm波长钛宝石激光泵浦,实现了1.9μm准连续激光输出。当输出镜透过率为6.6%时,激光起振阈值为60mW,斜率效率为50%,最大输出功率为0.5W。输出激光波长随输出镜透过率的增大向短波方向移动。实验结果表明,Tm3+:NaLa(MoO4)2晶体是一种性能优良的1.9μm波段激光晶体。Using a C-cut 7.5% Tm^3＋：NaLa（ MoO4 ）2 crystal with thickness of 0.94 mm as the gain medium and a Ti ： sapphire laser at 795.5 nm as the pumping source, the quasi-cw 1.9 μm laser operation was realized. When the output coupler transmission was 6.6%, then the threshold of 60 mW, the slope efficiency of 50%, and the maximum output power of 0.5 W were achieved. As the transmission of the output coupler increased, the output laser shifted to shorter wavelength. The results showed that the Tm^3＋ ：Na- La（ MoO4 ）2 crystal was an excellent gain medium for 1.9 μm laser.

关 键 词：NaLa(MoO4)2晶体 Tm3+离子 1.9μm激光 稀土 

分 类 号：TN244[电子电信—物理电子学]