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

页码：54 / 61

页数：8

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