High-power and highly efficient amplification of a radially polarized beam using an Yb-doped double-clad fiber

被引：18
|
作者：
Kanazawa, Shinya [1 ]
Kozawa, Yuichi [1 ]
Sato, Shunichi [1 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
OPTICS LETTERS | 2014年 / 39卷 / 10期
基金：
日本科学技术振兴机构;
关键词：
CYLINDRICAL-VECTOR BEAMS; SINGLE-FREQUENCY; OUTPUT POWER; LASER-BEAMS; AMPLIFIER; MODE;
D O I：
10.1364/OL.39.002857
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrated the amplification of a radially polarized beam by using an Yb-doped double-clad fiber. The output power of the amplified beam reached 21 W at pump power of 30 W. The generation of amplified spontaneous emission was suppressed by applying a seed beam with sufficient power. Although the intensity distribution of the seed beam was well maintained after the amplification, partial transformation of radial polarization to azimuthal polarization was observed. (C) 2014 Optical Society of America
引用
收藏
页码：2857 / 2859
页数：3
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