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实验研究了氟磷玻璃中［ＰＯ３］－含量的变化对Ｙｂ３＋的光谱性质的影响。结果表明．随着［ＰＯ３］－含量的增大，Ｙｂ３＋的受激发射截面积增大，吸收光谱和荧光光谱谱线位置向长波方向移动，反映出Ｎｅｐｈｅｌａｕｘｅｔｉｃ效应。随［ＰＯ３］－含量增大，玻璃中引入的ＯＨ－离子浓度增大，极大降低了Ｙｂ３＋荧光寿命。
The effect of [PO3] - content on the spectral properties of Yb3 + was investigated experimentally. The results show. With the increase of [PO3] - content, the stimulated emission cross section of Yb3 + increases, and the positions of absorption and fluorescence spectra shift to the longwave, which reflects the Nephelauxetic effect. With the increase of [PO3] - content, the concentration of OH- ions introduced into the glass increases, greatly reducing the fluorescence lifetime of Yb3 +.