Amplification of a radially polarized laser beam using an Yb-doped double-clad fiber

被引：5
|
作者：
Chubachi, Tatsuya [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 | 2009年 / 34卷 / 06期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
OUTPUT POWER; 1; KW; BIREFRINGENCE; GENERATION; CO2-LASER;
D O I：
10.1364/OL.34.000716
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Amplification of a radially polarized laser beam is demonstrated by use of an Yb-doped double-clad fiber whose core cutoff wavelength for the LP(11) mode is larger than the wavelength of the input beam. The beam power is amplified while maintaining the intensity and polarization distributions. The amplified spontaneous emission becomes negligible with increasing input power. The measured slope efficiency is 48%, and the output power is 1.1 W. (C) 2009 Optical Society of America
引用
收藏
页码：716 / 718
页数：3
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