Abstract In the study of Nd:phosphate laser glass modified by introducing Li2O (0–8 mol%) and Na2O (0–8 mol%), respectively, glass transition temperature (Tg), thermal expansion coefficient (α), nonlinear refractive index (n2) and effective linewidth (Δλeff) were measured. Statistical based composition-structure-property (C-S-P) models were systematically developed. For the single-component study, a limitation of the C-P model approach is first discussed, i.e., which cannot adequately simulate glass property responses. To overcome the C-P mode limitation from the single-component study, C-S and S-P models were subsequently explored. The alternative methodology, transforms a problem of a given glass property response to a single (one dimensional) oxide change to a problem of the same property response to multi-directional glass structural changes for building a corresponding statistical S-P model. The same methodology is also applied to build C-S model. Plausible glass network structural units (or distributions) were derived from measured Fourier transform Infra-red (FTIR) spectra aided by using a standard curve-fitting method. As a result, S-P models showed significant improvements in simulating the measured glass properties. The C-S-P models, as a glass design tool box, were validated by using four designed glasses in the current independent design of experiment (DOE). For the four DOE derived glass compositions, the measured Li2O and Na2O concentrations and measured properties of the four glasses were very close to the C-S-P model predictions within the experimental errors, except for two cases where differences of Tg were significantly large.

中文翻译：

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Nd3+掺杂碱磷酸盐激光玻璃的成分-结构-性质建模

摘要 在分别引入 Li2O (0–8 mol%) 和 Na2O (0–8 mol%) 改性 Nd:磷酸盐激光玻璃的研究中，玻璃化转变温度 (Tg)、热膨胀系数 (α)、非线性折射率(n2) 和有效线宽 (Δλeff) 被测量。系统地开发了基于统计的成分-结构-特性 (CSP) 模型。对于单组分研究，首先讨论 CP 模型方法的局限性，即它不能充分模拟玻璃特性响应。为了克服单组分研究中的 CP 模式限制，随后探索了 CS 和 SP 模型。替代方法，将给定玻璃特性对单个（一维）氧化物变化的响应问题转换为对多方向玻璃结构变化的相同特性响应问题，以构建相应的统计 SP 模型。同样的方法也适用于构建 CS 模型。合理的玻璃网络结构单元（或分布）来自测量的傅立叶变换红外（FTIR）光谱，并使用标准曲线拟合方法辅助。因此，SP 模型在模拟测量的玻璃特性方面显示出显着改进。CSP 模型作为玻璃设计工具箱，通过在当前独立实验设计 (DOE) 中使用四种设计的玻璃进行验证。对于四种 DOE 衍生的玻璃成分，