The effect of La2O3 in Tm3+-doped germanate-tellurite glasses for ∼2 μm emission

被引：49
|
作者：
Peng, Ya-Pei [1 ,2 ]
Yuan, Xinqiang [1 ]
Zhang, Junjie [3 ]
Zhang, Long [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
[3] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
来源：
SCIENTIFIC REPORTS | 2014年 / 4卷
基金：
中国国家自然科学基金;
关键词：
FIBER LASER; SPECTROSCOPIC PROPERTIES; TM3+; INTENSITIES; ZBLAN; ER3+;
D O I：
10.1038/srep05256
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A germanate-tellurite glass (GeO2-TeO2-K2O-Nb2O5-La2O3) with thulium doping has been investigated for application as a laser material around 2.0 mu m regions. Under the 808 nm laser diode pumped, intense 1.8 mu m emission is obtained. Based on the absorption spectra, radiative properties are predicted using Judd-Ofelt theory. The maximum value of emission cross-section of Tm3+ around 1.8 mu m can reach 1.46 x 10(-20) cm(2), which indicated that the germanate-tellurite glass may provide high gain as a good medium for efficient 1.8 mu m laser system.
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页数：5
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