New Er-doped gadolinium borogermanate glasses were synthesized to investigate their physical, structural, optical, and luminescence properties in this work. The influence of ErO concentration on those properties were studied to determine the optimum glass composition for photonics material. Glass density, molar volume, refractive index, polarizability, and field strength increase, while Er inter-ionic distance decreases via adding ErO concentration. From XRD and FTIR results, the tetrahedral BO and trigonal BO borates are the main structural units those connect in amorphous nature to form as a glass network. Glasses absorb the photons in ultraviolet, visible light and near-infrared region under Er transitions. Glasses generate the strong infrared emission around 1.5 μm under the I → I transition of Er ion. The 3.0 mol%-ErO doped glass performs the highest emission intensity due to the concentration quenching effect. The luminescence decay time is shortened from ∼0.8 to ∼0.4 ms by adding ErO content. Judd-Ofelt and MacCumber analysis indicate high potential of glass for using as an optical amplifier in telecommunication applications, due to its large luminescence bandwidth.

中文翻译：

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用于光通信的新型掺Er3+硼锗酸钆玻璃


在这项工作中，合成了新型掺铒硼锗酸钆玻璃，以研究其物理、结构、光学和发光特性。研究了 ErO 浓度对这些性能的影响，以确定光子材料的最佳玻璃成分。随着ErO浓度的增加，玻璃密度、摩尔体积、折射率、极化率和场强增加，而Er离子间距离减小。从 XRD 和 FTIR 结果来看，四面体 BO 和三方 BO 硼酸盐是主要结构单元，它们以非晶态形式连接形成玻璃网络。玻璃在铒跃迁下吸收紫外、可见光和近红外区域的光子。玻璃在 Er 离子的 I → I 跃迁下产生 1.5 μm 左右的强红外发射。由于浓度猝灭效应，3.0 mol%-ErO 掺杂玻璃具有最高的发射强度。通过添加 ErO 含量，发光衰减时间从~0.8 ms缩短至~0.4 ms。 Judd-Ofelt 和 MacCumber 的分析表明，由于玻璃的发光带宽较大，因此在电信应用中用作光学放大器具有很高的潜力。