Spectroscopic properties of erbium-doped ultraphosphate glasses for 1.5 μm amplification

被引：58

作者：

Feng, X ^{[1
]}

Tanabe, S ^{[1
]}

Hanada, T ^{[1
]}

机构：

[1] Kyoto Univ, Fac Integrated Studies, Sakyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 89卷 / 07期

关键词：

D O I：

10.1063/1.1352687

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The spectroscopic properties of P2O5-Y2O3-Er2O3 and P2O5-Li2O-Al2O3-Y2O3-Er2O3 ultraphosphate glasses have been investigated. The concentration quenching rates of Er3+ in these two systems are lower compared with those in other oxide glasses. The spectral broadening of the measured fluorescence of 83.33P(2)O(5)-(16.67-x)Er2O3-xY(2)O(3) (x=0.1 and 16.67) was observed by increasing temperature. Meanwhile, the lifetime of the I-4(13/2) level shows the temperature dependence with increasing temperature, ascribed to the possible thermalization of higher-lying sublevels of the I-4(13/2) level with faster radiative rates and the effect of radiation trapping. At room temperature, the deformation of the emission spectrum line shape has been observed with the increase of Er2O3 concentration due to the reabsorption effect. The 1.5-mum-amplification characteristics of P2O5-Y2O3-Er2O3 ultraphosphate glasses have been predicted from the calculated gain spectra at different pump powers. (C) 2001 American Institute of Physics.

引用

页码：3560 / 3567

页数：8

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