中文摘要：

采用固相反应方法制备了Er／Y共掺激光玻璃，其中Er^3＋浓度分别为0．5at％和1．0at％，所对应的Y^3＋浓度的变化范围分别为0．0at％-2．5at％和0．0at％-5．0at％．通过吸收光谱、瞬态和稳态光致发光光谱测量，研究了Y共掺对Er^3＋吸收截面、发射截面、荧光寿命和光致荧光特征的影响．研究结果表明：Y共掺杂导致1530nm附近的吸收峰宽化，对Er^3＋的吸收起到了一定的增强作用，并且这种宽化作用随着E^3＋浓度的增加而更为显著．同时，Y共掺杂可以显著改善Er^3＋的荧光寿命．但是，在980nm激光抽运下，Er／Y共掺激光玻璃在1530n／n处的光致荧光强度随Y的掺入增加并不十分显著．

英文摘要：

0.5at% and 1.0at% Er/Y co-doped silicate glasses with different Y2 03 concentrations were fabricated by means of hightemperature solid-state reaction, with the Y concentration varying from 0.0at %-2.5at % and 0.0at %-5.0at %, respectively. By measuring the absorption spectra, the photoluminescence （PL） and PL decay, we studied the dependence of absorption and emission cross-section at 1530 nm and the lifetime and PL features on Y concentration. The results showed that Y co-doping enabled the absorption peak to widen and enhanced the absorption. The lifetime was prolonged considerably, especially for the highly Er-doped silicate glasses. However, considerable enhancement of PL intensity was not detected when the glasses were excited by a 980 nm laser.