Generalized analysis of nonlinear optical guided-wave coupled systems

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 opt ical coupling systems is given that introduces a generalization of the anal ysis for nonlinear asymmetric coupling. General cases including those for n onlinear guided modes and power nonorthogonality are considered, and full, power-conserved and nonorthogonal coupled-mode equations (in terms of param eters directly related to the lightwave power contained in the waveguides) are proposed and analytically described. A numerical case study of the nonl inear asymmetric coupling system, which consists of a slab-planar optical w aveguide and an optical fiber is described. (C) 2001 Optical Society of Ame rica.