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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 18 — Aug. 27, 2012
  • pp: 20715–20720

Simultaneous generation and Brillouin amplification of a dark hollow beam with a liquid-core optical fiber

Wei Gao, Xiaobo Hu, Di Sun, and Jianyi Li  »View Author Affiliations

Optics Express, Vol. 20, Issue 18, pp. 20715-20720 (2012)

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We propose and demonstrate a new method to generate a dark hollow beam (DHB) and amplify it simultaneously by a liquid-core optical fiber (LCOF) filled with CS2. A DHB with an adjustable dark spot size (DSS) is simply obtained by changing the incident angle of the laser beam. Based on non-collinear Brillouin amplification, a weak DHB can be amplified with high gain. The amplification factor of 106 is achieved for a DHB of 4pJ. This DHB should have promising applications in many fields due to its compact structure, low cost, wide adjustment range of the DSS, and wide operating wavelength.

© 2012 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.2640) Nonlinear optics : Stimulated scattering, modulation, etc.
(290.5830) Scattering : Scattering, Brillouin
(080.4865) Geometric optics : Optical vortices

ToC Category:
Nonlinear Optics

Original Manuscript: July 17, 2012
Revised Manuscript: August 16, 2012
Manuscript Accepted: August 16, 2012
Published: August 24, 2012

Wei Gao, Xiaobo Hu, Di Sun, and Jianyi Li, "Simultaneous generation and Brillouin amplification of a dark hollow beam with a liquid-core optical fiber," Opt. Express 20, 20715-20720 (2012)

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