用高温熔融法制备了成分为:Er2O3,Lu2O3,SiO2,B2O3和Na2O的新型玻璃体系,探索了该玻璃体系的成玻范围,发现该玻璃体系在(摩尔分数)SiO2:0～50%,Lu2O3:0～25%和B2O3:20%以上的范围内均可形成完全透明的玻璃,在Lu2O3:10%.SiO2:50%,B2O3:30%和B2O3:30%,SiO2:60%两个组分附近时玻璃轻微失透.除此以外,在其他组分实验上没有得到玻璃.利用McCumtber理论计算出了样品的吸收和受激发射截面,并从玻璃1.5 μm的吸收光谱出发拟合出了Judd-Ofelt参数Ωλ(2,4,6).结果表明,该玻璃体系具有较大的吸收和受激发射截面.差热分析的数据表明,该玻璃体系具有极好的热稳定性.因此,从1.5μm发射的增益带宽和热稳定性两个方面来考虑,本文所制备的镥硼硅酸盐玻璃体系是一种具有应用潜力的掺铒光纤放大器的基质材料.
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