Single-mode large-mode-area laser fiber with ultralow numerical aperture and high beam quality

被引：32

作者：

Peng, Kun ^{[1
]}

Zhan, Huan ^{[1
]}

Ni, Li ^{[1
]}

Wang, Xiaolong ^{[1
]}

Wang, Yuying ^{[1
]}

Gao, Cong ^{[1
]}

Li, Yuwei ^{[1
]}

Wang, Jianjun ^{[1
]}

Jing, Feng ^{[1
]}

Lin, Aoxiang ^{[1
]}

机构：

[1] CAEP, Laser Fus Res Ctr, Mianyang 621900, Sichuan, Peoples R China

来源：

APPLIED OPTICS | 2016年 / 55卷 / 35期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

POWER;

D O I：

10.1364/AO.55.010133

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By using the chelate precursor doping technique, we report on an ytterbium-doped aluminophosphosilicate (APS) large-mode-area fiber with ultralow numerical aperture of 0.036 and effective fundamental mode area of similar to 550 mu m(2). With a bend diameter of 600 mm, the bending loss of fundamental mode LP01 was measured to be < 10(-3) dB/m, in agreement with the corresponding simulation results, while that of higher order mode LP11 is >100 dB/m at 1080 nm. Measured in an all-fiber oscillator laser cavity, 592 W single-mode laser output was obtained at 1079.64 nm with high-beam quality M-2 of 1.12. The results indicate that the chelate precursor doping technique is a competitive method for ultralow numerical aperture fiber fabrication, which is very suitable for developing single-mode seed lasers for high power laser systems. (C) 2016 Optical Society of America

引用

页码：10133 / 10137

页数：5

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