The Er³⁺/Yb³⁺ co-doped phosphate glasses with GeO₂ modification (PGs) were successfully prepared by melt-quenching method. Their physical parameters were investigated such as density, refractive index, glass transition temperature and coefficients of thermal expansion. The phenomenological intensity parameters Ω _t (t = 2, 4, 6) of the PGs have been calculated by the Judd-Ofelt theory. The relationship between optical properties and GeO₂ concentration was discussed in this work. The laser experiment using PG10 (GeO₂ 10 mol% modified phosphate glass with Er³⁺/Yb³⁺ ratio of 0.5/2) was carried out. The research results indicate that the introduction of GeO₂ results in a large absorption and emission cross-section, a long lifetime, a high quantum efficiency, and an excellent laser performance. All these advantages could also portend an optimized method for improving spectroscopic properties in other constituent Er³⁺/Yb³⁺ co-doped phosphate glass by introducing GeO₂.

采用熔融淬火法成功制备了具有GeO ₂改性的Er ³⁺ /Yb ³⁺共掺杂磷酸盐玻璃(PGs)。研究了它们的物理参数，例如密度、折射率、玻璃化转变温度和热膨胀系数。PGs 的现象学强度参数Ω _t ( t = 2, 4, 6) 已由 Judd-Ofelt 理论计算得出。在这项工作中讨论了光学性质和GeO ₂浓度之间的关系。使用 PG10 (GeO ₂ 10 mol% 改性磷酸盐玻璃与 Er ³⁺ /Yb ³⁺的激光实验 0.5/2) 的比例。研究结果表明，GeO ₂的引入导致吸收和发射截面大、寿命长、量子效率高和优异的激光性能。所有这些优点也预示着一种通过引入GeO ₂来改善其他成分Er ³⁺ /Yb ³⁺共掺杂磷酸盐玻璃的光谱特性的优化方法。