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设计了组成为0.70TeO2-(0.20-x)ZnO-xGeO2—0.05La2O3-0.025K2O-0.025Na2O-0.01Yb2O3(摩尔分数x=0,0.05,0.10,0.15和0.20)的碲酸盐激光玻璃,测试了热学性质、吸收光谱、荧光光谱和荧光寿命。计算了Yb^3+离子的吸收截面、受激发射截面、荧光有效线宽等参数。结果表明,组成为0.70TeO2-0.20GeO2-0.05La2O3-0.025K2O-0.025Na2O的玻璃具有优于著名的碲锌钠(TZN)玻璃的热稳定性,高的受激发射截面(1