Nd³⁺-Er³⁺-Pr³⁺ tri-doped tellurite glasses with lower phonon energy (768 cm⁻¹) were prepared by conventional melt-quenching method. Under the excitation of 488nm, an ultra-broadband emission from 760 to 1150 nm with full-width at half-maximum (FWHM) of about 262 nm was observed in the prepared Nd³⁺-Er³⁺-Pr³⁺ tri-doped glass sample, larger than that of the recently reported glasses. The DSC curve shows that the prepared tellurite glass has high glass transition temperature (T_g=382°C) and good thermal stability (ΔT=203°C). The gain coefficient, maximum absorption and emission cross section of Nd³⁺-Er³⁺-Pr³⁺ tri-doped tellurite glass for Nd³⁺:⁴F_3/2→⁴I_9/2 and Er³⁺:⁴I_11/2→⁴I_15/2 transitions are calculated as 0.41 cm⁻¹, 0.80 × 10⁻²⁰ cm², 1.07 × 10⁻²⁰ cm², 0.35 cm⁻¹, 0.37 × 10⁻²⁰ cm² and 0.45 × 10⁻²⁰ cm², respectively. Compared with the recently reported glasses, these values were effectively improved. This means that the prepared tellurite glass has better fluorescence emission and laser gain performance.

的Nd ³⁺ -Er ³⁺ -Pr ³⁺三掺杂碲酸盐玻璃具有较低声子能量（768厘米^-1）通过常规的熔态-淬火法制备。下488nm处的激发下，在所制备的Nd观察到大约262纳米的超宽带发射从760到与全宽1150纳米半最大值（FWHM）³⁺ -Er ³⁺ -Pr ³⁺三掺杂玻璃样品，比最近报道的玻璃样品大。DSC曲线表明，所制备的碲酸盐玻璃具有较高的玻璃化转变温度（T _g＝ 382℃）和良好的热稳定性（ΔT＝ 203℃）。Nd ³⁺ -Er的增益系数，最大吸收发射截面³⁺ -Pr ³⁺三掺杂碲酸盐玻璃钕³⁺：⁴ ˚F _3/2 → ⁴余_9/2和Er ³⁺：^4个我_11/2 → ⁴我_15/2跃迁计算为0.41厘米^{- 1}，0.80×10 ^-20厘米²，1.07×10 ^-20厘米²，0.35厘米^-1，0.37×10 ^-20厘米²和0.45×10 ^-20厘米²， 分别。与最近报道的眼镜相比，这些值得到了有效改善。这意味着所制备的亚碲酸盐玻璃具有更好的荧光发射和激光增益性能。