Structure and spectroscopic properties of Er3+ doped germanate glass for mid-infrared application

被引：19
|
作者：
Wei, Tao [1 ]
Chen, Fangze [1 ]
Jing, Xufeng [2 ]
Wang, Fengchao [1 ]
Tian, Ying [1 ]
Xu, Shiqing [1 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
[2] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Zhejiang, Peoples R China
来源：
SOLID STATE SCIENCES | 2014年 / 31卷
基金：
中国国家自然科学基金;
关键词：
Er3+ doped germanate glass; Mid-infrared properties; Glass structure; Gain coefficient; Stark splitting; 2.7; MU-M; FLUORIDE FIBER LASER; RARE-EARTH IONS; ND-YAG LASER; ENERGY-TRANSFER; M EMISSION; TELLURITE GLASSES; ORIGIN; TM3+; INTENSITIES;
D O I：
10.1016/j.solidstatesciences.2014.02.019
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Intense 2.7 mu m emission derived from modified Er3+ doped germanate glass was reported. Raman spectrum analysis was carried out to grasp glass structure. Based on the absorption spectrum, the Judd-Ofelt parameters and radiative properties were calculated originated from Judd-Ofelt theory. 2.7 gm emission characteristics, stark splitting features and energy transfer processes upon excitation of a conventional 808 nm or 980 nm laser diode were carefully investigated. The prepared glass possesses high spontaneous transition probability (34.28 s(-1)), large calculated emission cross section (13 x 10(-21) cm(2)) and gain coefficient (5.4 cm(-1)) for the I-4(11/2) -> I-4(13/2) transition. These results indicate that Er3+ doped germanate glass has potential applications in mid-infrared lasers and amplifiers. (C) 2014 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：54 / 61
页数：8
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