An injection-locked single-longitudinal-mode fiber ring laser with cylindrical vector beam emission


We demonstrate a fiber ring laser with narrow bandwidth single-longitudinal-mode cylindrical vector beam (CVB) output at C-band wavelength range for the first time to the best of our knowledge. A step index two-mode fiber Bragg grating is used as a transverse mode selector for CVB generation, while both the injection-locking technique and narrow bandwidth of the fiber Bragg grating lead to single-longitudinal-mode operation. The 3-dB bandwidth of the laser output is measured to be <0.01 nm near a single wavelength of 1551.4 nm with a signal-to-background ratio of >60 dB. Mode distribution and optical spectra of few-mode fibers with periodic modulated refractive index profile, namely the few-mode fiber Bragg gratings with bent radius, are investigated theoretically and experimentally, which provide a comprehensive exploration of CVB's generation.

Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
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Publication ISSN: 1943-0655
Last Modified: 29 Nov 2023 11:31
Date Deposited: 04 Apr 2017 13:25
Full Text Link: 10.1109/JPHOT.2017.2653618
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2017-02
Published Online Date: 2017-01-16
Accepted Date: 2017-01-09
Submitted Date: 2016-12-01
Authors: Wan, Hongdan
Li, Hongye
Wang, Changle
Sun, Bing
Zhang, Zuxing
Wei, Wei
Zhang, Lin



Version: Published Version

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