采用提拉法生长了Yb3+掺质浓度为5%原子分数、 50%原子分数和100%原子分数的Yb:Y3Al5O12(Yb: YAG)晶体,系统地分析了不同Yb3+掺质浓度晶体的吸收光谱和荧光光谱.从吸收峰和吸收系数可以看出采用940nm LD泵浦三种不同浓度的Yb:YAG晶体都比较合适.随着Yb3+离子掺质浓度的增高,晶体中出现的自吸收现象越为明显.通过对三种不同Yb掺质浓度晶体激光性能参数的计算,得出高掺质浓度Yb:YAG和YbAG晶体是有前景的激光增益介质.
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