Generation of cylindrical vector beams in a mode-locked fiber laser using a mode-selective coupler

被引：14
|
作者：
Cai, Yu [1 ]
Wang, Jie [1 ]
Zhang, Jiaojiao [1 ]
Wan, Hongdan [1 ]
Zhang, Zuxing [1 ]
Zhang, Lin [1 ,2 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Adv Photon Technol Lab, Nanjing 210023, Jiangsu, Peoples R China
[2] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England
来源：
CHINESE OPTICS LETTERS | 2018年 / 16卷 / 01期
基金：
美国国家科学基金会;
关键词：
EFFICIENT;
D O I：
10.3788/COL201816.010602
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally obtain cylindrical vector beams (CVBs) in a passively mode-locked fiber laser based on nonlinear polarization rotation. A mode-selective coupler composed of both a single-mode fiber (SMF) and a two-mode fiber (TMF) is incorporated into the cavity to act as a mode converter from LP01 mode to LP11 mode with broad spectral bandwidth. CVBs in different mode-locked states including single-pulse, multi-pulse, and bound pulse are obtained, for the first time to our best knowledge. The ultrafast CVBs with different operation states have potential applications in many fields such as laser beam machining, nanoparticle manipulation, and so on.
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页数：5
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