Germanate laser glasses have received much attention as a promising host materials for mid‐infrared fiber lasers in recent years because of the outstanding infrared transparency, low phonon energy, and high rare earth solubility of such glasses. However, the development of high‐performance germanate laser glasses is usually based on intuition and a trial‐and‐error method, which can involve long experimental periods and high costs, and thus, this approach is highly inefficient. Recently, with proposals for materials genome engineering, the concept of the “glass genome” has grown of interest to us. Herein, the structures of Tm³⁺‐doped germanate laser glasses (BaO–GeO₂ and BaO–La₂O₃–GeO₂) were investigated by Fourier transform infrared spectra (FTIR) and Raman spectra analyses, which revealed that the resulting glass contains similar structural groups to the neighboring congruently melted glassy compounds (NCMGCs) in the composition diagram. What is more, the structure and properties of the resulting laser glasses largely depend on NCMGCs. Then, the glass‐forming region, physical properties, and luminescence properties were calculated via the use of NCMGCs in Tm³⁺‐doped BaO–GeO₂ binary and BaO–La₂O₃–GeO₂ ternary laser glass systems. The calculated results were in good agreement with the experimental results, thus demonstrating that our approach is practical for predicting the glass‐forming region, physical properties, and luminescence properties in Tm³⁺‐doped BaO–GeO₂ binary and BaO–La₂O₃–GeO₂ ternary laser glass systems. This work may provide an effective method to develop Tm³⁺‐doped germanate laser glasses rapidly and at low cost.

中文翻译：

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Tm3 +掺杂的德国激光玻璃中玻璃形成区域和发光特性的定量预测

近年来，锗酸盐激光玻璃作为中红外光纤激光器的有希望的主体材料受到了广泛关注，因为这种玻璃具有出色的红外透明性，低声子能量和很高的稀土溶解度。但是，高性能德国激光眼镜的开发通常基于直觉和反复试验的方法，这可能需要较长的实验时间和较高的成本，因此这种方法的效率非常低。近年来，随着材料基因组工程的提议，“玻璃基因组”的概念引起了我们的兴趣。在此，掺有Tm ^3+的德国锗激光玻璃（BaO–GeO ₂和BaO–La ₂ O ₃ –GeO _{2的结构）}）通过傅立叶变换红外光谱（FTIR）和拉曼光谱分析进行了研究，结果表明，所得玻璃在组成图中与相邻的完全熔融的玻璃态化合物（NCMGC）具有相似的结构基团。而且，所得激光玻璃的结构和性能很大程度上取决于NCMGC。然后，通过在Tm ³⁺掺杂的BaO–GeO ₂二元和BaO–La ₂ O ₃ –GeO _2中使用NCMGC来计算玻璃的形成区域，物理性质和发光性质。三元激光玻璃系统。计算结果与实验结果吻合良好，因此表明我们的方法可用于预测掺有Tm ^3+的BaO-GeO ₂二元和BaO-La ₂ O中的玻璃形成区域，物理性质和发光性质。₃ –GeO ₂三元激光玻璃系统。这项工作可能提供一种有效的方法，以低成本快速开发掺有Tm ^3+的德国锗激光玻璃。