Abstract In the current study, a sequence of Er3+-Yb3+ co-doped bismuth borophosphate glasses [EBiBPxY] having the chemical-formula (49.5−x)B2O3 − 20P2O5 − 10LiF − 10PbO − 10Bi2O3 − 0.5Er2O3 − xYb2O3 were synthesized employing the melt-quenching procedure. The structural and compositional studies made by analyzing XRD and FTIR spectra, respectively. The dopant-host bonding-nature is analyzed from the bonding parameters. 4S3/2 → 4I15/2 (green) transition possesses more intensity than the transition 4F9/2 → 4I15/2 (red). The broader peak intensity changes with Yb2O3 concentration. It is owing to the energy-diffusion among Yb3+ and Er3+. The peak is consequent to the transition 4I13/2 → 4I15/2 and appears at 1530 nm. The Judd-Ofelt (JO) parameters are following Ω2>Ω4>Ω6 trend. Eopt, the optical band-gap, is falling with RE3+ content owing to the creation of non-bridging oxygen (nBO's). This implies a rise in the nBO's, possibly will decrease the conduction-band minima and valence-band maxima separation. While scrutinizing the luminescence properties, the radiative parameter values of EBiBP0.5Y glass (corresponds to the 4S3/2 → 4I15/2 as well as 4I13/2 → 4I15/2 transitions) are dominant. The same can be useful for green-laser and broadband optical-amplifier applications.

中文翻译：

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Er/Yb共掺杂对光子应用硼磷酸铋玻璃光谱性能的影响

摘要 在目前的研究中，一系列具有化学式 (49.5-x)B2O3 − 20P2O5 − 10LiF − 10PbO − 10Bi2O3 − 0.5Er2O3 − xYb2O 的 Er3+-Yb3+ 共掺杂硼磷酸铋玻璃 [EBiBPxY] 被合成- 淬火程序。通过分别分析 XRD 和 FTIR 光谱进行结构和成分研究。从键合参数分析掺杂剂-主体键合性质。4S3/2 → 4I15/2（绿色）过渡比 4F9/2 → 4I15/2（红色）过渡具有更大的强度。更宽的峰强度随 Yb2O3 浓度而变化。这是由于 Yb3+ 和 Er3+ 之间的能量扩散。峰值是 4I13/2 → 4I15/2 跃迁的结果，出现在 1530 nm。Judd-Ofelt (JO) 参数遵循Ω2>Ω4>Ω6 趋势。Eopt，光学带隙，由于非桥氧 (nBO) 的产生，RE3+ 含量正在下降。这意味着 nBO 的增加，可能会减少导带最小值和价带最大值的分离。在仔细研究发光特性时，EBiBP0.5Y 玻璃的辐射参数值（对应于 4S3/2 → 4I15/2 以及 4I13/2 → 4I15/2 跃迁）占主导地位。这同样适用于绿色激光和宽带光放大器应用。