Abstract

First, we recall how two exact solutions of the nonlinear Schrödinger equation that describe (i) soliton propagation on a cw background and (ii) collision between two dark pulses can be obtained by using a common direct integration method. Second, we analyze the amplification–absorption effects on the first solution in the adiabatic approximation.

© 1993 Optical Society of America

Dark optical solitons with finite-width background pulses

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