Abstract
We present an overview and generalized analysis through a number of general cases of coupled-wave equations for nonlinear optical guided-wave coupled systems. They are applicable for both symmetric and asymmetric guided-wave coupling structures. An overview of the nonlinear symmetric guided-wave optical coupling systems is given that introduces a generalization of the analysis for nonlinear asymmetric coupling. General cases including those for nonlinear guided modes and power nonorthogonality are considered, and full, power-conserved and nonorthogonal coupled-mode equations (in terms of parameters directly related to the light-wave power contained in the waveguides) are proposed and analytically described. A numerical case study of the nonlinear asymmetric coupling system, which consists of a slab-planar optical waveguide and an optical fiber is described.
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