制备了掺杂浓度分别为2.0mol%的Tm3+及Ho3+单掺的两种锗酸盐玻璃. 根据McCumber理论计算了Tm3+离子能级3H6←→3F4(1.8 μm)跃迁和Ho3+离子能级5I8←→5I7(2.0 μm)跃迁的吸收截面和受激发射截面. 同时,根据所获得的吸收截面、发射截面以及掺杂离子的浓度分别获得了Tm3+离子和Ho3+离子在两种不同锗酸盐玻璃基质中的增益截面函数, 从该函数可反映出材料的粒子数反转特性. 对于Tm3+离子掺杂的锗酸盐玻璃,其吸收截面、发射截面和增益截面的最大值大于在氟锆酸盐、氟化物和氟氧化物玻璃中; 对于Ho3+掺杂的锗酸盐玻璃,其吸收截面、发射截面和增益截面的最大值也大于在氟锆铝酸盐玻璃. 因此,Tm3+和Ho3+掺杂的两种锗酸盐玻璃在～1.8和～2.0 μm波段的中红外激光器中将有潜在的应用前景.
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