Switching dynamics of short optical pulses in a nonlinear directional coupler

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)79-83
Journal / PublicationIEEE Journal of Quantum Electronics
Volume35
Issue number1
Publication statusPublished - Jan 1999

Abstract

It has been shown recently that the propagation of short optical pulses in a nonlinear directional coupler consisting of two parallel waveguides or fibers should be described more generally by a pair of coupled nonlinear equations that take into account the dispersion properties of the coupling coefficient. In this paper, we use the Fourier series analysis method to solve these equations, and study the effects of a dispersive coupling coefficient on the switching dynamics of short optical pulses in a nonlinear directional coupler. We demonstrate, with numerical examples, that a dispersive coupling coefficient could cause significant pulse distortion and affect the threshold switching intensity. The effects of introducing frequency chirps in the input pulses are also discussed. © 1999 IEEE.

Research Area(s)

  • Couplers, Nonlinear optics, Switches, Waveguides