用熔融急冷法制备系列掺杂不同KBr含量且一定量Er3+浓度的Ge25Ga10S65硫卤玻璃，测试样品折射率、吸收光谱及近中红外荧光光谱。通过吸收光谱计算Er3+吸收谱线的振子强度，应用Judd–Ofelt理论计算分析Er3+在不同系列Ge25Ga10S65玻璃的强度参数(Ωi, i = 2，4，6)和4I11/2能级的计算能级寿命(tc)，并与测量能级寿命(tm)进行比较，研究其能级寿命的变化规律。结果表明：随着KBr浓度的增加，4I11/2的tc和tm均有所增加，tm = (6.61±0.19) ms，tc = 10.82 ms。研究样品玻璃中Er3+:4I11/2→4I13/2能级间跃迁过程中的多声子弛豫率(Wmp)跟KBr浓度之间的关系，结果表明：随着KBr浓度的增加，4I11/2→4I13/2能级间跃迁过程中的Wmp有所减小，为133～58/s。

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