【作者】 张伟南； 袁健； 陈东丹；

【Author】 HANG Wei-nan,YUAN Jian,CHEN Dong-dan (Institute of Optical Communication Materials and MOE Key Lab of Specially Functional Materials,South China University of Technology,Guangzhou 510640,China)

【机构】 华南理工大学光通讯材料研究所特种功能材料及其制备新技术教育部重点实验室；

【摘要】 本文研究了（90-x）TeO₂-xWO₃-3ZnO-6La₂O₃-1Tm₂O₃[（x=10%,20%,30%,40%）（摩尔分数）]碲酸盐玻璃（以下简称TWZL玻璃）的热稳定性和光谱性质,讨论了WO₃含量和除水工艺对1.8μm发光的影响.研究发现:掺入一定量的WO₃不但可以改善玻璃的热稳定性和提高玻璃转变温度（T_g）,而且会增强Tm³⁺的1.8μm发光.但是当WO₃含量超过30%时,玻璃热稳定性恶化,出现析晶现象.除水工艺对发光的影响明显,通入一段时间的氧气可以有效提高Tm³⁺的1.8μm发光.实验研究表明,60TeO₂-30WO₃-3ZnO-7La₂O₃玻璃是一种理想的2.0μm波段激光器的基质材料.更多还原

【Abstract】 In this paper,we report the tellurite glass with the molar composition of（90-x）TeO₂-xWO₃- 3ZnO-6La₂O₃-1Tm₂O₃（x=10,20,30,40（mol%））（hereinafter called TWZL for short）and its thermal stability and spectral property.And we discuss the effect of WO₃ content and removing water process on the 1.8μm emission in the Tm³⁺doped tellurite glass.It is found that introducing appropriate WO₃ content not only improves the thermal stability and transition temperature（T_g）,but also enhances the 1.8μm emission from Tm³⁺.When WO₃ content is more than 30%,the thermal stability has begun to deteriorate and the glass becomes opaque.Removing water process has an obvious effect on the 1.8μm emission. Bubbling O₂ through the melt a period of time,the 1.8μm emission from Tm³⁺can be greatly enhanced. It is shown that the glass with the molar composition of 60TeO₂-30WO₃-3ZnO-7La₂O₃ is a promising host material for 2.0μm laser.更多还原