采用熔融淬冷法制备了新型的Er3+/RE3+(RE3+=Ce3+,Tb3+)掺杂的GeO2-TeO2-Na2O玻璃。测试了样品的差示扫描分析曲线、可见/近红外透过率、拉曼光谱、吸收光谱和1.53 μm发光光谱。研究发现适量的TeO2对GeO2的取代提高了玻璃的热稳定性, 缩短了样品的吸收截止边。拉曼分析表明该系统玻璃有着宽广的红外透过范围。同时研究了980 nm激发下稀土离子(RE3+=Ce3+,Tb3+)的加入对Er3+掺杂的45GeO2-45TeO2-10Na2O玻璃的光谱性能和能量传递的影响。发现随着Ce3+浓度增加大大地提高了1.53 μm的发光强度, CeO2的最佳掺杂摩尔分数为0.1%, 而Tb3+的共掺降低了1.53 μm的发光强度。可见Er3+/Ce3+掺杂的45GeO2-45TeO2-10Na2O玻璃在C波段光纤放大器方面有潜在的应用前景。

A new type of Er3+/RE3+ (RE3+=Ce3+, Tb3+)-doped GeO2-TeO2-Na2O glasses were prepared by melting quenching method. The differential scanning analysis curves, visible/near infrared transmittance, Raman spectra, absorption spectra and 1.53 μm luminescence spectra were tested. It is found that the thermal stability is enhanced and the absorption cutoff edge of the samples blue-shifted with the increase of substituted GeO2 content for TeO2. Raman analysis shows that the GeO2-TeO2-Na2O glass has a wide range of infrared transmittance. Meanwhile, the influence of rare earth ions (RE3+=Ce3+, Tb3+) on the spectral properties and energy transfer of Er3+-doped 45GeO2-45TeO2-10Na2O glass under 980 nm excitation has been studied. 1.53 μm emission intensity shows a firstly increasing and then decreasing trend, and the optimal CeO2 mole fraction is 0.1%. While co-doping Tb3+ reduces the 1.53 μm emission intensity of Er3+. It can be seen that the Er3+/Ce3+-doped 45GeO2-45TeO2-10Na2O glass might be a promising material in the field of C band fiber amplifier.