Accurate Gaussian and equivalent-step-index approximations for highly nonlinear waveguides

R. A. Sammut; C. Pask

doi:10.1364/IPR.1990.TuE4

Integrated Photonics Research
Technical Digest Series (Optica Publishing Group, 1990),
paper TuE4
•https://doi.org/10.1364/IPR.1990.TuE4

Accurate Gaussian and equivalent-step-index approximations for highly nonlinear waveguides

R. A. Sammut and C. Pask

Integrated Photonics Research 1990

Hilton Head, South Carolina United States
26–28 March 1990
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R. A. Sammut and C. Pask, "Accurate Gaussian and equivalent-step-index approximations for highly nonlinear waveguides," in Integrated Photonics Research, Technical Digest Series (Optica Publishing Group, 1990), paper TuE4.

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Abstract

The electromagnetic field of the fundamental mode propagating in a waveguide whose core has a large nonlinear coefficient may be significantly distorted from that of the corresponding linear mode. In the special case of a step-index, planar waveguide this field can be described in terms of elliptic functions,¹ but for more general refractive-index profiles numerical solutions are required.

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