High-order mode direct oscillation of few-mode fiber laser for high-quality cylindrical vector beams

Generation of high-order modes with high quality is important for the application of cylindrical vector beams in fibers. We experimentally demonstrated high-order LP mode generation and amplification with a broad bandwidth in an all few-mode fiber laser. A wavelength-division-multiplexing (WDM) mode...

Full description

Saved in:
Bibliographic Details
Published inOptics express Vol. 26; no. 9; pp. 11850 - 11858
Main Authors Wang, Teng, Shi, Fan, Huang, Yiping, Wen, Jianxiang, Luo, Zhengqian, Pang, Fufei, Wang, Tingyun, Zeng, Xianglong
Format Journal Article
LanguageEnglish
Published United States 30.04.2018
Online AccessGet full text

Cover

More Information
Summary:Generation of high-order modes with high quality is important for the application of cylindrical vector beams in fibers. We experimentally demonstrated high-order LP mode generation and amplification with a broad bandwidth in an all few-mode fiber laser. A wavelength-division-multiplexing (WDM) mode selective coupler (MSC) is proposed to achieve efficient mode conversion from LP mode to LP mode, but also combine high-order LP modes at the wavelengths of 980/1550 nm. To the best of our knowledge, this is the first report on the high-order mode oscillation in an all few-mode fiber laser. LP mode and cylindrical vector beams including radially and azimuthally polarized beams are obtained with high modal purity. The purity of the generated high-order modes are all in excess of 95%.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.26.011850