Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm

被引：45
|
作者：
Schafer, C. A. [1 ]
Uehara, H. [2 ]
Konishi, D. [1 ]
Hattori, S. [1 ]
Matsukuma, H. [2 ,3 ]
Murakami, M. [1 ]
Shimizu, S. [1 ,4 ]
Tokita, S. [2 ]
机构：
[1] Mitsuboshi Diamond Ind Ltd, 32-12 Koroen, Osaka 5660034, Japan
[2] Osaka Univ, Inst Laser Engn, 2-6 Yamadaoka, Suita, Osaka 5650871, Japan
[3] Tohoku Univ, Grad Sch Engn, 6-6-01 Aramaki Aza Aoba, Sendai, Miyagi 9808579, Japan
[4] Spectronix Corp, 3-28-15 Tarumi Cho, Osaka, Osaka 5640062, Japan
来源：
OPTICS LETTERS | 2018年 / 43卷 / 10期
基金：
日本科学技术振兴机构;
关键词：
D O I：
10.1364/OL.43.002340
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 p.m was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride-glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability. (C) 2018 Optical Society of America
引用
收藏
页码：2340 / 2343
页数：4
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