Tm3+-doped silica-glass fiber for ∼2-μm fiber laser

被引：5

作者：

Lu, Yu ^{[1
]}

Feng, Gaofeng ^{[1
]}

Wang, Meng ^{[2
]}

Zhang, Lei ^{[2
]}

Yang, Junyong ^{[1
]}

Zhang, Junjie ^{[3
]}

机构：

[1] Zhejiang Futong Opt Fiber Technol Co Ltd, Hangzhou 311422, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab High Power Laser Mat, Shanghai 201800, Peoples R China

[3] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

APPLIED OPTICS | 2019年 / 58卷 / 07期

关键词：

MU-M LASER; HIGHLY EFFICIENT; TELLURITE GLASS; EMISSION; POWER; INTENSITIES; DEPENDENCE; TM3+;

D O I：

10.1364/AO.58.001747

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Tm3+-doped silica-glass preforms were fabricated by the modified chemical vapor deposition process combined with the solution doping technique. Its spectroscopic properties were evaluated according to the detected absorption spectrum and the fluorescence spectrum. The calculated maximum emission cross section of Tm3+ ions in this core glass is 5.66 x 10(-21) cm(2), and the tested fluorescence lifetime is 544 mu s at 1816 nm. According to the theory of Dexter and Forster, the cross-relaxation rate was calculated by the integral overlap of the absorption and emission cross sections. A double-cladding fiber with a core NA of 0.14 was prepared by high temperature drawing. A maximum 14.5-W fiber laser output centered at 2001 nm with a slope efficiency of 50.6% was obtained from a 4.5-m-length double-cladding fiber. (C) 2019 Optical Society of America

引用

页码：1747 / 1751

页数：5

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