Journal
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
Volume 18, Issue 6, Pages 1410-1432Publisher
ELSEVIER
DOI: 10.1016/j.cnsns.2012.10.008
Keywords
Inhomogeneous fibers; Optical soliton; Nonlinear Schrodinger equation; Lax pair; Darboux transformation; NLS-MB equation
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Funding
- Department of Science and Technology (DST), India
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We consider optical pulse propagation in an Erbium doped inhomogeneous lossy optical fiber with time dependent phase modulation, which is governed by a system of Generalized Inhomogeneous Nonlinear Schrodinger Maxwell-Bloch (GINLS-MB) equation. Multi-soliton propagation is studied analytically by means of deriving associated Lax pair and the soliton solutions are obtained using Darboux transformation. By suitably adjusting the group velocity dispersion and nonlinearity parameter, we discuss various soliton dynamics such as periodic distributed amplification, pulse compression etc. In each case, we demonstrate the influence of inhomogeneous parameter. Finally we investigate the pulse compression through nonlinear tunneling. (C) 2012 Elsevier B. V. All rights reserved.
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