Abstract
The soliton perturbation theory is employed to study chirped solitons
that propagate through optical couplers and is governed by the
dispersion-managed nonlinear Schrödinger's equation.
Here, in this paper, we have considered both kinds of couplers namely
twin-core as well as the multiple-core type. In either case,
both Gaussian and super-Gaussian solitons are taken into account.