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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 2 — Jan. 15, 2006
  • pp: 158–160

Beam cleanup in a self-aligned gradient-index Brillouin cavity for high-power multimode fiber amplifiers

L. Lombard, A. Brignon, J.-P. Huignard, E. Lallier, and P. Georges  »View Author Affiliations


Optics Letters, Vol. 31, Issue 2, pp. 158-160 (2006)
http://dx.doi.org/10.1364/OL.31.000158


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Abstract

We propose a beam cleanup setup to convert a multimode beam into a single-mode beam by use of the Brillouin effect in a multimode gradient-index (GI) fiber. Phase conjugation and beam cleanup regimes in highly multimode fibers are discussed, and the self-aligned GI fiber Brillouin cavity is presented. We report a preliminary conversion from an M 2 = 6.5 beam into an M 2 = 1.3 beam with 31% efficiency.

© 2006 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3300) Lasers and laser optics : Laser beam shaping
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.5890) Nonlinear optics : Scattering, stimulated
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Fiber Optics and Optical Communications

Citation
L. Lombard, A. Brignon, J.-P. Huignard, E. Lallier, and P. Georges, "Beam cleanup in a self-aligned gradient-index Brillouin cavity for high-power multimode fiber amplifiers," Opt. Lett. 31, 158-160 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-2-158

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