具有高机械强度的掺Er^(3+)∶TeO_2-Nb_2O_5玻璃的光谱性质研究  

The Spectroscopic Properties of Er^(3+)-doped TeO_2-Nb_2O_5 Glasses with High Mechanical Strength Performance

作　　者：吴家禄[1,2] 戴世勋[1,3] 张军杰[1] 胡丽丽[1] 姜中宏[1] 

机构地区：[1]中国科学院上海光学精密机械研究所 [2]中国科学院研究生院,北京100039 [3]宁波大学信息科学与工程学院,宁波315211

出　　处：《光子学报》2006年第2期209-213,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(60207006);上海市光科技项目(022261046);上海青年科技启明星项目(04QMX1448)

摘　　要：熔制了掺铒碲铌玻璃样品(100-X)TeO2-XNb2O5(X=5,10,15,20mol%),测试了其密度、折射率、转变温度、析晶温度、维氏机械强度、吸收光谱、荧光光谱、荧光寿命等参量。利用Judd-Ofelt和McCumber理论分别计算了铒离子强度参量Ωt(t=2,4,6)和受激发射截面σemi的大小,研究了掺铒碲铌玻璃样品光谱参量对Nb2O5成分的依赖性,并与典型的碲锌钠玻璃(75TeO2-20ZnO-5Na2O)在热学、机械强度、光谱性质和放大品行四个方面进行了比较.Er^3＋-doped （100-x）TeO2-xNb205 （x=5, 10, 15, 20mol%） niobic tellurite glasses were synthesized, and their density, refractive index, glass transition temperature, crystallization temperature, Vickers microhardness, absorption spectra, fluorescence spectra andthe lifetimes of Er^3＋ ：^4I13/2 level were measured. The Judd - Ofelt strength parameters Ωt （t= 2, 4, 6） and the stimulated emission cross-section （σcmi） were calculated by Judd - Ofelt theory and McCumber theory, respectively. The compositional dependence of optical parameters of Er^3＋ in g/ass samples wase investigated. The properties of Er^3＋-doped niobic tellurite glasses were compared with that of the typical 75TeO2-20ZnO-5Na2O （TZN） tellurite glass in aspect of thermal, mechanical, spectroscopic properties and amplification merit.

关 键 词：掺铒碲铌玻璃 光谱性质 机械强度 宽带光纤放大器 

分 类 号：TQ171.112[化学工程—玻璃工业] TH114[化学工程—硅酸盐工业]