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

Wan, Hongdan, Li, Hongye, Wang, Changle, Sun, Bing, Zhang, Zuxing, Wei, Wei and Zhang, Lin (2017). An injection-locked single-longitudinal-mode fiber ring laser with cylindrical vector beam emission. IEEE Photonics Journal, 9 (1),

Abstract

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.

Publication DOI: https://doi.org/10.1109/JPHOT.2017.2653618
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © 2016 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
Uncontrolled Keywords: fiber gratings,Fiber laser,Optical fiber devices,Atomic and Molecular Physics, and Optics,Electrical and Electronic Engineering
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2017-02
Authors: Wan, Hongdan
Li, Hongye
Wang, Changle
Sun, Bing
Zhang, Zuxing
Wei, Wei
Zhang, Lin ( 0000-0002-1691-5577)

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