Nd^(3+):KGd(WO_4)_2激光晶体的研究  

Study on Laser Crystal Nd^(3+):KGd(WO_4)_2

作　　者：涂朝阳[1] 李坚富[1] 朱昭捷[1] 唐鼎元[1] 王元康[1] 罗遵度[1] J.J.Romero J.Garcia Sole 

机构地区：[1]中国科学院福建物质结构研究所,福州350002 [2]Departamento de Fisica de Materiales

出　　处：《人工晶体学报》2001年第2期135-139,共5页Journal of Synthetic Crystals

基　　金：福建省科技项目;福建物构所发展基金资助项目

摘　　要：合成了一系列不同Nd3+ 浓度掺杂的Nd3+ :KGd(WO4 ) 2 粉末样品 ,进行了荧光光谱测试 ,初步确定了Nd3+ 的最佳掺杂浓度 ;测定了Nd3+ :KGd(WO4 ) 2 K2 WO4 生长体系的生长温度曲线 ,生长出尺寸达 50mm的Nd3+ :KGd(WO4 ) 2 优质激光晶体 ,切割出尺寸为 5mm× 5mm× 6mm的优质激光器件 ,采用钛宝石模拟LD泵浦 ,在 1.0 6 μm处得到 2 6 0mW的激光输出 ,斜率效率达到 6 6 % ;在 1.0 3μm处得到 135mW激光输出 ,斜率效率达到 34.3%。A series of KGd(WO 4) 2 powder samples with different Nd 3+ doping concentrations were made and their fluorescent intensities at 1.06 μm were measured.The optimal Nd 3+ doping concentration has been determined.The liquid temperature curve for the system of Nd 3+ :KGd(WO 4) 2 K 2WO 4 was determined by means of differential thermal analysis(DTA),and large crystals of Nd 3+ :KGd(WO 4) 2 with dimensions of up to 50mm have been grown from a K 2WO 4 flux.From the grown crystal boule,a high quality laser bulk crystal with dimensions of 5mm×5mm×6mm was cut out,and it's absorption spectrum has been measured.A laser output of 260mW at 1.06 μm with a slope efficiency higher than 66% and a laser output of 135mW at 1.3 μm with a slope efficiency up to 34.3% were obtained when this crystal was pumped by a Ti sapphire laser.

关 键 词：熔盐法 Nd^3+:KGd(WO4)2晶体 激光性能 钕离子 激光晶体 

分 类 号：O782.4[理学—晶体学] TN244[电子电信—物理电子学]