In this paper, we study the interaction of two temporally separated soliton pulses in a two-
core optical fiber by solving numerically a pair of linearly coupled nonlinear wave equations …

The nonlinear directional coupler (NLDC) is studied in terms of intermodal dispersion (IMD).
The system of the coupled nonlinear Schrödinger equations (CNLSE) of the coupled-mode …

Nonlinear switching of ultrashort pulses in two-core, three-core, and four-core optical fibers
is analyzed theoretically by solving a set of generalized, linearly coupled nonlinear …

The numerical algorithm is presented for solving coupled extended nonlinear Schrödinger
equations (NLSEs) including higher-order dispersion, retarded nonlinear response, and self …

A set of N-dimension linear-coupled first-order differential equations were solved by a new
method, which leads to a very simple iterative scheme. Based on the split-step Fourier …

The pulse coupling dynamics in a nonlinear directional coupler (NLDC) is analyzed by using
the new normalized coupled nonlinear Schrödinger equations. The operation of an NLDC …

The switching dynamics of short pulses in an active nonlinear two-core fiber coupler is
investigated theoretically. The analysis takes into account the effects of coupling-coefficient …

It is known that the intermodal dispersion in a two-core fiber can affect seriously the
propagation dynamics of short pulses and even cause pulse breakup. In this paper, we …

Since the existence of intermodal dispersion or coupling coefficient dispersion in an optical
directional coupler was highlighted ten years ago, a number of theoretical studies for the …

The pulse widening in fiber communications causes a significant restriction of bit rate. The
intermodal dispersion occurs not only in grade-index multimode fibers but also in the two …