Effect of pumping on spectral characteristics of Er-doped glasses

被引：4
|
作者：
Nikonorov, NV [1 ]
Przhevuskii, AK [1 ]
Chukharev, AV [1 ]
机构：
[1] Corning Sci Ctr, St Petersburg 199034, Russia
来源：
RARE-EARTH-DOPED MATERIALS AND DEVICES V | 2001年 / 4282卷
关键词：
Er-doped glass; absorption and fluorescence spectra; heating effect;
D O I：
10.1117/12.424781
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fluorescence and absorption variation of spectra of Er- and Yb/Er-doped phosphate and silicate glasses (fiber and bulk) under CW Ti-sapphire laser were investigated. On pumping, the differential spectra demonstrated variations of spectral profiles. The reason of these variations is heating effect under high pump power. These variations were explained by a redistribution of the populations of the Stark sublevels of the I-4(15/2) ground and the I-4(13/2) excited manifolds. The heating effect under pumping was taken into account for measurement of quantum yield and determination of absolute values of upconversion coefficients. Several techniques that reduce the heating effect on fluorescence, excited state absorption, and ground state absorption spectra due to pumping were proposed.
引用
收藏
页码：219 / 228
页数：10
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