为了制备高性能的掺Er硅基玻璃，通过溶胶－凝胶方法制备了掺Er³⁺和Al³⁺的硅基玻璃，研究了Al³⁺对Er³⁺发光性能的影响。结果表明，掺Al³⁺后使样品中Er³⁺离子的最大掺杂浓度提高1倍，发光强度也明显增强，是不掺Al³⁺的Er－硅基玻璃中Er³⁺离子发光强度的20多倍。通过分析发现，Al³⁺和Er³⁺之间并不是简单的能量传递关系，而是在改变原基质结构的同时，有效分散了样品中的Er³⁺离子，降低了Er³⁺离子之间的交叉弛豫几率；在980nm波长激发下，Er³⁺离子只有654nm一个波长的上转换荧光。

The silica glass doped with Er³⁺ and Al³⁺ iones were synthesized through sol-gel process. The effect of Al³⁺ on luminescence properties of Er³⁺ was studied. The results show that the concentration of Er³⁺ in co-doped silica glass can be improved one time than Er-doped glass,and the intensity is 20 times than that of Al non-doped glass. We concluded that the relation between Al³⁺ and Er³⁺ is just not energy transfer,but is that Al³⁺ not only change the configuration of sample,but also disperse the Er³⁺,as a result,the odds of cross-relaxation is depressed. And find that Er³⁺ iones have only an up-conversion emission at 654nm using 980nm excitation.