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
收藏
页码：1939 / 1943
页数：5
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