Passively mode-locked ytterbium-doped fiber laser with cylindrical vector beam generation based on mode selective coupler


We propose and demonstrate, for the first time to the best of our knowledge, a passively mode-locked ytterbium-doped fiber laser generating cylindrical vector beams (CVBs) using a mode selective coupler (MSC) as the transverse mode converter and splitter, and a semiconductor saturable absorber mirror (SESAM) for mode-locking. According to the coupling mode theory and the phase matching principle, the MSC was fabricated by weakly fused technology, having a low loss of about 0.5 dB and achieving LP11 mode with a high purity of > 96%. The CVB fiber laser operates at a center wavelength of 1042.3 nm, with a 3 dB spectral width of 1.5 nm. The repetition rate of the mode-locked laser pulses is 18.58 MHz. The radially and azimuthally polarized vector beams can be switched by adjusting the polarization controllers in the fiber ring cavity, with a high mode purity measured to be > 95%. The mode-locked CVB ytterbium-doped fiber laser has potential applications in optical tweezers, optical imaging, and so on.

Publication DOI:
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: This work was supported by National Science Foundation of Jiangsu Province under (BK20150858, BK20161521), the Distinguished Professor Project of Jiangsu (RK002STP14001), the Talents Projects in Nanjing University of Posts and Telecommunications (NY214002, NY215002) and the STITP of NUPT (XZD2017040).
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Related URLs: https://ieeexpl ... cument/8365769/ (Publisher URL)
PURE Output Type: Article
Published Date: 2018-05-25
Accepted Date: 2018-05-01
Authors: Wan, Hongdan
Wang, Jie
Zhang, Zuxing
Wang, Jinzhang
Ruan, Shuangchen
Zhang, Lin ( 0000-0002-1691-5577)



Version: Accepted Version

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