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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 4 — Feb. 15, 2012
  • pp: 464–466

Low-threshold single-wavelength all-fiber laser generating cylindrical vector beams using a few-mode fiber Bragg grating

Biao Sun, Anting Wang, Lixin Xu, Chun Gu, Zhongxi Lin, Hai Ming, and Qiwen Zhan  »View Author Affiliations


Optics Letters, Vol. 37, Issue 4, pp. 464-466 (2012)
http://dx.doi.org/10.1364/OL.37.000464


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Abstract

We propose and demonstrate a low-threshold single-wavelength all-fiber laser generating cylindrical vector beams using a few-mode fiber Bragg grating. Both radially and azimuthally polarized beams have been generated with very good modal symmetry and polarization purity higher than 94%. The radially and azimuthally polarized modes can be switched by simply adjusting the polarization controllers built in the fiber laser cavity. This fiber laser operates at a single wavelength of 1053 nm with a 3 dB linewidth of less than 0.02 nm, signal-to-background ratio of more than 55 dB, and a threshold as low as 16 mW. A new method for the polarization purity measurement is also proposed.

© 2012 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(260.5430) Physical optics : Polarization
(140.3615) Lasers and laser optics : Lasers, ytterbium
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 14, 2011
Revised Manuscript: December 14, 2011
Manuscript Accepted: December 15, 2011
Published: February 6, 2012

Citation
Biao Sun, Anting Wang, Lixin Xu, Chun Gu, Zhongxi Lin, Hai Ming, and Qiwen Zhan, "Low-threshold single-wavelength all-fiber laser generating cylindrical vector beams using a few-mode fiber Bragg grating," Opt. Lett. 37, 464-466 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-4-464

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