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Soliton self-switching in an asymmetric nonlinear directional coupler

A. K. SARMA1,*

Affiliation

  1. Department of Physics, Indian Institute of Technology Guwahati 781039, India

Abstract

Soliton switching in an asymmetric nonlinear directional coupler with dissimilar core sizes is studied numerically. A new Schrödinger type coupled nonlinear equations describing the switching dynamics is presented. The relevant coupler parameters are calculated. It is shown that the asymmetric coupler exhibits soliton switching only if the deviation from the symmetry is slight and in the weak coupling regime.

Keywords

Soliton, Nonlinear directional coupler, Intermodal dispersion, Nonlinear Schrödinger equation.

Citation

A. K. SARMA, Soliton self-switching in an asymmetric nonlinear directional coupler, Optoelectronics and Advanced Materials - Rapid Communications, 1, 11, November 2007, pp.558-562 (2007).

Submitted at: Sept. 10, 2007

Accepted at: Oct. 31, 2007