Spectroscopic properties of Yb3+ in heavy metal contained fluorophosphate glasses

被引：32
|
作者：
Choi, JH
Margaryan, A
Margaryan, A
Shi, FG [1 ]
机构：
[1] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Optoelect Mat & Packaging Lab, Irvine, CA 92697 USA
[2] AFO Res Inc, Glendale, CA 91209 USA
来源：
MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 12期
关键词：
glasses; luminescence;
D O I：
10.1016/j.materresbull.2005.06.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new series of 20Bi(PO3)(3)-10Sr(PO3)(2)-35BaF(2)-35MgF(2) doped with Yb3+ is introduced for fiber and waveguide laser applications. The stimulated emission cross-section sigma(emi), which was found to be 1.37 pm(2) at the lasing wavelength of 996 nm, is the highest one among fluorophosphate glasses. It has been found that an extremely high gain coefficient of G = 1.65 ms pm(4) and high quantum efficiency of eta = 93% for 1 wt.% Yb2O3 doped systems. The various concentration effects on laser performance properties including minimum pumping intensity I-min, the minimum fraction of excited ions beta(min) and the saturation pumping intensity I-sat are analyzed as a function of Yb2O3 concentration. Those results obtained in current system had advantage over some fluorophosphate glasses reported. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2189 / 2197
页数：9
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