Investigation of thermal stability and spectroscopic properties in Er3+/Yb3+-codoped TeO2-Li2O-B2O3-GeO2 glasses

被引：22

作者：

Nie, QH ^{[1
]}

Gao, Y ^{[1
]}

Xu, TF ^{[1
]}

Shen, X ^{[1
]}

机构：

[1] Ningho Univ, Coll Informat Sci & Engn, Ningbo 315211, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2005年 / 61卷 / 08期

基金：

中国国家自然科学基金;

关键词：

tellurite glasses; Er3+/Yb3+ co-doped; thermal stability; spectroscopic properties; FT-IR;

D O I：

10.1016/j.saa.2004.07.026

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The new Er3+/Yb3+ co-doped 70TeO(2)-5Li(2)O-(25-x)B2O3-xGeO(2)(x = 0, 5, 10, 15 fand 20 mol.%) glasses were prepared. The thermal stability, absorption spectra, emission spectra and lifetime of the I-4(13/2) level of Er3+ ions were measured and studied. The FF-IR spectra were carried out in order to investigate the structure of local arrangements in glasses. It is found that the thermal stability, absorption cross-section of Yb3+, emission intensity and lifetime of the 4I(13/2) level of Er3+ increase with increasing GeO2 content in the glass composition, while the fluorescence width at half maximum (FWHM) at 1.5 um of Er3+ is about 70 nm. The obtained data suggest that this system glass can be used as a candidate host material for potential broadband optical amplifiers. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：1939 / 1943

页数：5

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