用高温熔融法制备了Tm₂O₃掺杂的55GeO₂-15PbO-5PbF₂-10BaO-10ZnO-5K₂O锗酸盐玻璃,测试了该玻璃的热稳定性和结构,得到其热稳定性参数大于180 ℃。通过红外光谱测试了该玻璃的羟基含量,得到羟基吸收系数小于0.51 cm ^-1。测试了不同Tm₂O₃掺杂浓度下样品的吸收光谱和荧光光谱。研究结果表明,随着Tm₂O₃质量分数的增加,Tm ³⁺之间的交叉弛豫速率增大。当Tm₂O₃的质量分数为5%时,1880 nm处的荧光强度最强, ³F₄到 ³H₆能级跃迁的峰值发射截面高达5.84×10 ^-21 cm ²。

The Tm2O3-doped 55GeO2-15PbO-5PbF2-10BaO-10ZnO-5K2O germanate glass is fabricated by using the high temperature melt-quenching method. The thermal stability and structures of this glass are measured, and the thermal stability coefficient of this glass is greater than 180 ℃. The hydroxyl content of this glass is measured by a infrared spectroscopy and the hydroxyl absorption coefficient is less than 0.51 cm -1. The absorption and fluorescence spectra are obtained under different Tm2O3 doping concentrations. The research results show that the cross-relaxation rate increases with the increase of Tm2O3 mass fraction. When the mass fraction of Tm2O3 is 5%, the fluorescence intensity at a wavelength of 1880 nm reaches the maximum, and the peak emission cross section of 3F4→ 3H6 energy transition is up to 5.84×10 -21 cm 2.