Nd³⁺/Yb³⁺ co-doped fluorobromide glass samples were prepared by melt quenching. The mid-infrared (MIR) luminescence of the Nd³⁺/Yb³⁺ co-doped fluorobromide glass was investigated by Br-doping reduces the phonon state density of the matrix. The 3.9 μm MIR luminescence of the samples excited at 793 and 980 nm pump excitation was investigated in detail. There is an effective mutual energy transfer process between Nd³⁺ and Yb³⁺. It is proved under 793 nm excitation that the luminescence of Nd³⁺ at 3.9 μm is reduced by effective energy transfer from Nd³⁺:²H_11/2 → Yb³⁺:²F_5/2. At the same time, it is proved that the effective energy transfer from Yb³⁺:²F_5/2 → Nd³⁺:²H_11/2 under the excitation of 980 nm enhances the luminescence of Nd³⁺ at 3.9 μm. In addition, it is found that the samples still have good infrared (IR) luminescent properties when the temperature changes. The emission cross-sectional area and the absorption cross-sectional area are σ_em (3.87 × 10⁻²⁰ cm²) and σ_abs (4.25 × 10⁻²⁰ cm²). The fluorescence decay characteristics of the sample at 3.9 μm at the ²H_11/2 level were investigated and the fluorescence lifetime was calculated. The gain performance of the sample was calculated and analyzed, which can reach 4.25 × 10⁻²⁰ cm². Those results prove that Nd³⁺/Yb³⁺ co-doped fluorobromide glass is the potential mid-infrared laser gain material.

通过熔融淬火制备Nd ³⁺ /Yb ³⁺共掺杂氟溴化物玻璃样品。Nd ³⁺ /Yb ³⁺共掺杂氟溴化物玻璃的中红外(MIR)发光通过Br掺杂降低基体的声子态密度来研究。详细研究了在 793 和 980 nm 泵浦激发下激发的样品的 3.9 μm MIR 发光。Nd ³⁺和Yb ³⁺之间存在有效的互能传递过程。证明在 793 nm 激发下，Nd ³⁺在 3.9 μm处的发光因 Nd ³⁺ : ² H _11/2 → Yb ^{3+ 的}有效能量转移而降低：² F _5/2。同时证明了在980 nm激发下Yb ³⁺ : ² F _5/2 → Nd ³⁺ : ² H _11/2的有效能量转移增强了Nd ³⁺在3.9 μm处的发光。此外，发现样品在温度变化时仍具有良好的红外（IR）发光特性。发射截面积和吸收截面积分别为σ _em (3.87 × 10 ^-20  cm ² ) 和σ _abs (4.25 × 10 ^-20  cm ^{2 )}）。研究了样品在 3.9 μm 处在² H _11/2水平下的荧光衰减特性并计算了荧光寿命。对样品的增益性能进行计算分析，可达到4.25×10 ^-20  cm ²。这些结果证明Nd ³⁺ /Yb ³⁺共掺杂氟溴化物玻璃是潜在的中红外激光增益材料。