图5 808 nm激发下, Bi单掺和BiTm 共掺样品中Bi离子在1320 nm处的荧光衰减曲线 Fig. 5 Fluorescence decay curves of active Bi ions near 1320 nm in Bi singly doped and BiTm co-doped glasses Solid lines show the experimental data, and the dotted lines show the fitting curves with I - H model |