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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 19, Iss. 12 — Dec. 2, 2002
  • pp: 2938–2944

Optical discrete solitons in waveguide arrays. I. Soliton formation

H. S. Eisenberg, R. Morandotti, Y. Silberberg, J. M. Arnold, G. Pennelli, and J. S. Aitchison  »View Author Affiliations

JOSA B, Vol. 19, Issue 12, pp. 2938-2944 (2002)

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We investigate the generation of discrete spatial solitons in arrays of coupled waveguides. Light was launched into the center of the array, and different beam sizes and array geometries were tested. At low power, the propagating field spreads as it couples to more waveguides. When the intensity is increased, localization is observed around the input waveguides, leading to the formation of a discrete soliton. For wide input beams, exciting a few waveguides, soliton splitting, which is due to instability induced by multiphoton absorption, is observed. All of these effects are described well by a coupled-mode formalism.

© 2002 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(230.7380) Optical devices : Waveguides, channeled

H. S. Eisenberg, R. Morandotti, Y. Silberberg, J. M. Arnold, G. Pennelli, and J. S. Aitchison, "Optical discrete solitons in waveguide arrays. I. Soliton formation," J. Opt. Soc. Am. B 19, 2938-2944 (2002)

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