制备了一系列Dy3+掺杂新型Ga-Sb-S硫系玻璃,研究了玻璃的热稳定性(玻璃态稳定性)、光学性能、结构和中红外发光性能,通过组分微调改善了玻璃的抗析晶性能,拉制了高光学质量的光纤。结果表明,Dy3+掺杂Ga-Sb-S玻璃具有良好的热稳定性、优异的红外透光性和较低的声子能量,在2.95、3.59、4.17、4.40μm附近表现出较强的发光;少量As替代Sb可显著减弱光纤拉制过程中玻璃的析晶倾向,同时未对玻璃的发光产生显著影响。光谱分析结果显示,Dy3+在Ga-Sb-S玻璃中的2.95μm和4.17μm荧光量子效率分别为88.1%和75.9%,对应的受激发射截面分别为1.1×10-20cm2和0.38×10-20cm2。较高的量子效率和较大的受激发射截面使得Dy3+掺杂Ga-Sb-S玻璃成为极具潜力的中红外激光增益材料。 A series of Dy3 + -doped Ga-Sb-S chalcogenide glasses were prepared. The thermal stability (glassy stability), optical properties, structure and mid-infrared luminescence properties of the glasses were studied. Crystallization performance, drawn high optical quality fiber. The results show that Dy3 + doped Ga-Sb-S glass has good thermal stability, excellent infrared transparency and low phonon energy, and shows strong luminescence at 2.95, 3.59, 4.17 and 4.40 μm. A small amount of As instead of Sb significantly reduces the tendency of the glass to crystallize during the drawing of the optical fiber while not having a significant effect on the luminescence of the glass. The results of spectral analysis showed that the fluorescence quantum efficiencies of 2.95μm and 4.17μm of Dy3 + in Ga-Sb-S glass were 88.1% and 75.9%, respectively. The corresponding stimulated emission cross sections were 1.1 × 10-20cm2 and 0.38 × 10-20cm2 . The higher quantum efficiency and larger stimulated emission cross sections make Dy3 + doped Ga-Sb-S glass a promising material for mid-infrared laser gain.