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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 2, Iss. 12 — Jun. 8, 1998
  • pp: 483–490

Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries

M. Warenghem, J.F. Henninot, and G. Abbate  »View Author Affiliations

Optics Express, Vol. 2, Issue 12, pp. 483-490 (1998)

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We report on experiments dealing with the propagation of a collimated laser beam in a dye doped nematic confined in a capillary of optical fiber size. The nematic is aligned in a such a way that the source beam is self focused. The behavior of the beam - focusing, multifocus regime, filamentation and undulation - already observed in larger cylindrical geometry and pure nematic is shown here to be reproduced in the dye doped medium, at much lower powers. Another feature is reported here: a stable regime looking like a waveguide appears in certain conditions, in which the beam to propagate in a narrow tube. This regime is simply modeled in terms of saturated reorientation of the nematic.

© Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(160.3710) Materials : Liquid crystals

ToC Category:
Focus Issue: Nonlinear and photorefractive fibers and waveguides

Original Manuscript: January 14, 1998
Revised Manuscript: December 16, 1997
Published: June 8, 1998

Marc Warenghem, J. Henninot, and Giancarlo Abbate, "Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries," Opt. Express 2, 483-490 (1998)

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