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Type: Journal article
Title: A full vectorial model for pulse propagation in emerging waveguides with subwavelength structures part I: Kerr nonlinearity
Author: Afshar Vahid, S.
Monro, T.
Citation: Optics Express, 2009; 17(14):2298-2318
Publisher: Optical Soc Amer
Issue Date: 2009
ISSN: 1094-4087
Abstract: The propagation of pulses through waveguides with sub-wavelength features, inhomogeneous transverse structure, and high index contrast cannot be described accurately using existing models in the presence of nonlinear effects. Here we report the development of a generalised full vectorial model of nonlinear pulse propagation and demonstrate that, unlike the standard pulse propagation formulation, the z-component of guided modes plays a key role for these new structures, and results in generalised definitions of the nonlinear coefficient gamma, Aeff , and mode orthognality. While new definitions reduce to standard definitions in some limits, significant differences are predicted, including a factor of approximately 2 higher value for gamma, for emerging waveguides and microstructured fibers.
Keywords: Kerr effect
Nonlinear optics
Microstructured fibers
Rights: © 2009 Optical Society of America
DOI: 10.1364/OE.17.002298
Appears in Collections:Aurora harvest
Centre of Expertise in Photonics publications

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