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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 22, Iss. 5 — May. 1, 2005
  • pp: 1100–1104

Gaussian-mode analysis of waveguide-enhanced Kerr-type nonlinearity of optical fibers and photonic wires

Aleksei Zheltikov  »View Author Affiliations

JOSA B, Vol. 22, Issue 5, pp. 1100-1104 (2005)

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The Gaussian approximation of waveguide modes is used to analyze a Kerr-type nonlinearity of an optical fiber. This analysis gives physical insights into the behavior of the optimal transverse size of a waveguide providing the maximum enhancement of nonlinear-optical processes as a function of the core-cladding refractive-index step and the radiation wavelength. We show that, for the maximum enhancement of nonlinear-optical processes in a fiber where only the core is nonlinear, the effective mode area needs to be slightly larger than its minimum value. In the case of fused-silica fibers, the maximum enhancement of nonlinear-optical processes is achieved with fiber core diameters that are less than the radiation wavelength.

© 2005 Optical Society of America

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4370) Nonlinear optics : Nonlinear optics, fibers

Aleksei Zheltikov, "Gaussian-mode analysis of waveguide-enhanced Kerr-type nonlinearity of optical fibers and photonic wires," J. Opt. Soc. Am. B 22, 1100-1104 (2005)

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