Er^(3+)/Yb^(3+):KG(WO_4)_2的熔盐提拉法生长及光谱性能  

Crystal Growth and Spectroscopy of Er/Yb:KGW Crystal

作　　者：朱昭捷[1] 涂朝阳[1] 李坚富[1] 吴柏昌[1] 黄燕[1] 

机构地区：[1]中国科学院福建物质结构研究所,福建福州350002

出　　处：《光谱学与光谱分析》2005年第9期1432-1434,共3页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(50072032);福建省自然科学基金(E0310031)资助项目

摘　　要：采用熔盐提拉法生长了尺寸达30mm×25mm×15mm的Er3+/Yb3+:KGd(WO4)2透明晶体,从中切出5mm×5mm×3mm大小的激光器件,在室温下测试了吸收光谱,可以观察到晶体存在366,380,489,522,651,811,980nm等吸收峰,并对之进行了能级归属。同时在980nm激光激发下测试了荧光光谱,可以发现在1024,1535nm处存在较宽的强发射峰,其半高宽分别为60和36nm。研究结果表明,Er3+/Yb3+:KG(WO4)2适合于InGaAsLD(980nm)泵浦,有可能产生1024nm波段及人眼安全的1535nm波段的可调谐激光。The Er^3＋/Yb^3＋ ： KGW crystal with the dimensions of 30 mm ×25 mm ×15 mm was grown from K2W2O7 solvent by modified Czochralski method. The absorption spectrum was measured at room teanperature and its absorption peaks were assigned. The emission spectrum was obtained under the excitation of 980 nm. There are two broad emission bands at 1 024 and 1 535 nm, whose FHWM are 60 and 36 nm respectively. It shows that this crystal is suitable for InGaAs LD pumping, and may be a promising laser crystal tunable at near 1 024 and 1 535 nm.

关 键 词：Er^3+/Yb^3+:KGd(WO4)2 熔盐提拉法 光谱性能 

分 类 号：O782.5[理学—晶体学]