选取玻璃组分60SiO2-xBi2O3-(30-x)B2O3-2K2O-7Na2O-1Yb2O3(以mol%记,x=0,5,10,15,20,25,30)为研究对象.通过测试试样的物理性质和光谱性质,应用倒易法(reciprocity method)计算Yb3+离子的受激发射截面(σemi),并且计算了Yb3+的自发辐射几率(Arad),2F5/2能级的辐射寿命(Trad).讨论了玻璃中Bi2O3和B2O3的组成变化对其物理性质、Yb3+离子的吸收特性、发光特性以及OH-离子对实测Yb3+荧光寿命(τf)的影响.结果表明:Yb3+掺杂的SiO2-Bi2O3-B2O3具有较好的光谱性能,是一种新型的Yb3+掺杂双包层光纤候选基质材料.
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