中文摘要：

研究了碱金属和碱土金属离子修饰的掺铥碲酸盐玻璃的光谱性质，讨论了碱金属和碱土金属对掺铥碲酸盐玻璃J-O强度参数、1．46μm荧光发射强度、荧光半高宽、受激发射截面等光谱性质的影响，并与一些传统氧化物玻璃进行了比较。研究表明碱金属Li^＋和碱土金属Ba^2＋掺碲酸盐玻璃更适宜用作掺铥光放大器基质。含Li^＋的碲酸盐玻璃展现出7．90×10^-21 cm^2的高发射截面；含Ba^2＋碲酸盐玻璃具有7．55×10^-21cm^2的高发射截面、103nm的荧光半高宽。

英文摘要：

This paper reports the spectroscopic properties of Tm^3＋-doped tellurite glasses. The effects of alkaline/alkaline-earth metal composition on the spectroscopic properties of Tm^3＋ in tellurite glasses are investigated. A strong correlation between the alkaline/alkaline-earth metal content and the spectroscopic parameters, such as Judd-Ofelt intensity parameters,fluorexcent intensity at 1.46μm,full width at half-maximum and emission cross sections, has been observed. The tellurite glass with lithium oxide exhibits the largest calculated stimulate＆emission cross-section of 7. 90 × 10^-21 cm^2 among the tellurite studied; The tellurite glass with barium oxide has a large calculated stimulate＆emission cross-section of 7.55 × 10^-21cm^2 and a broadband near infrared emission at 1.46μm with a full width at half-maximum 103nm.