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A High‐Efficiency All‐Fiber Laser Operated in High‐Order Mode using Ring‐Core Yb‐Doped Fiber
Author(s) -
Li Hongxun,
Zhang Yimin,
Dong Zhipeng,
Lv Jialiang,
Gu Chun,
Yao Peijun,
Xu Lixin,
Zhang Rui,
Su Jingqin,
Chen Wei,
Zhu Yonggang,
Zhan Qiwen
Publication year - 2019
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201900079
Subject(s) - materials science , optics , fiber laser , laser beam quality , polarization maintaining optical fiber , polarization controller , mode volume , core (optical fiber) , graded index fiber , doping , optoelectronics , laser , optical fiber , physics , fiber optic sensor , laser beams
An all‐fiber laser generating a cylindrical vector beam is proposed and demonstrated using a home‐made ring‐core Yb‐doped fiber (RC‐YDF). In the RC‐YDF, not only annular doping but also ring‐type beam pump is realized. This is believed to be the first report describing the realization of annular doping and ring‐type beam pump in active fiber simultaneously, which can enhance the efficiency for high‐order mode oscillation. This laser operates in the high‐order mode stably with a slope efficiency of as high as 55.7%. Cylindrical vector modes can be obtained easily through adjusting the polarization controller. This work may have great potential for providing high‐efficiency and high‐power cylindrical vector beam and vortex beam sources.