中文摘要：

采用高温熔融法制备了Er3＋／Yb3＋共掺杂的磷酸盐玻璃陶瓷，测试和分析了其吸收光谱和975nm泵浦下的上转换和近红外发射光谱。X射线衍射（XI①）测试表明，玻璃陶瓷中的晶粒组成为Mg2P2O7，尺寸为30-40nin。根据Judd-Ofelt（J-O）理论、McCumber理论和Fuchtbauer-I，adenburg（F-L）方程等方法，分别计算了基质玻璃和玻璃陶瓷中的强度参数Ωt（t=2，4，6）、Er3’在1540ilia附近的吸收截面和受激发射截面。讨论了Er3＋在基质玻璃和玻璃陶瓷中的上转换和近红外发光特性。

英文摘要：

Era＋/Yba＋ co-doped phosphate glass ceramic was prepared by high temperature melting method. Its absorption spectra, upconversion and near infrared fluorescence spectra under 975 nm excitation were measured and in- vestigated. The XRD patterns show that the composition of crystals in glass ceramic is Mg2 P2 07, and the dimension of crystals is 30-40 nm. The parameters Ωt （t= 2,4,6）, absorption cross section and emission cross section of Er3＋ at 1540 nm were calculated by Judd-Ofelt theory, McCumber theory, Fuchtbauer-Ladenburg （F-L） formula, respective- ly. The upconversion and near infrared fluorescence spectra of Er3＋ ion in glass and glass ceramic were compared.