Different concentrations of neodymium-doped (Nd³⁺ ions) Oxy Fluoroborate (OFB) glasses were fabricated and systematically analyzed by employing spectroscopic techniques such as optical absorption, photoluminescence (PL) and PL decay spectral measurements to understand the NIR lasing potentialities. The information pertaining to absorption spectral features were subjected to Judd-Ofelt (J-O) analysis to understand the radiative properties such as transition probability (A_R), radiative lifetime (τ_R) and branching ratios (β_R) possessed by the as prepared Nd³⁺ ions doped OFB glasses. By correlating the radiative properties with the emission and PL decay spectral profiles, the emission cross-sections (σ_se) and quantum efficiency values are evaluated for the prominent fluorescent levels of Nd³⁺ ions in the as prepared glasses. Under 808 nm diode laser excitation, all the OFB glasses under investigation showcased two prominent NIR emissions at 1085 nm (⁴F_3/2 → ⁴I_11/2) and 1328 nm (⁴F_3/2 → ⁴I_13/2). The intensities of both the emission peaks escalates with increases in Nd³⁺ ions concentration up to 1 mol% and beyond decreases showcasing concentration quenching. The experimental lifetime values estimated from the single exponential PL decay profiles of ⁴F_3/2 level are decreasing monotonously with increase in Nd³⁺ ions concentration in the as prepared OFB glasses. Relatively higher branching ratios, emission cross-sections and quantum efficiency values estimated for Nd³⁺ ions doped OFB glasses indicates the potential usage of the as prepared glasses for 1.08 μm laser applications.

制作了不同浓度的掺钕（Nd ³⁺离子）氟硼酸（OFB）玻璃，并通过使用光谱技术（例如光吸收，光致发光（PL）和PL衰减光谱测量）来系统分析，以了解NIR激光发射潜力。关于吸收光谱特征的信息进行贾德-Ofelt理论（JO）分析，以了解该辐射性质，例如转换概率（A _{- [R} ），辐射寿命（τ _{- [R} ）和分支比（β _{- [R}由具有所制备的Nd）的³⁺离子掺杂OFB玻璃。通过将辐射特性与发射和PL衰减光谱图相关联，发射截面（σ_se）和量子效率值，以评估所制备玻璃中Nd ³⁺离子的显着荧光水平。在808 nm二极管激光激发下，所有被研究的OFB玻璃在1085 nm（⁴ F _3/2  →  ⁴ I _11/2）和1328 nm（⁴ F _3/2  →  ⁴ I _13/2）处均显示出两个突出的NIR发射。。随着Nd ³⁺离子浓度的增加，直至达到1 mol％，两个发射峰的强度都逐渐增大，并且超过该值时，则显示出浓度猝灭。根据⁴的单指数PL衰减曲线估算的实验寿命值随着所制备的OFB玻璃中Nd ³⁺离子浓度的增加，F _3/2含量单调下降。掺Nd ³⁺离子的OFB玻璃估计的相对较高的分支比，发射截面和量子效率值表明，制备的玻璃可用于1.08μm激光应用。