TRAPPING OF SLOWLY MOVING OR STATIONARY 2-COLOR GAP SOLITONS

We address the important problem of excitation of gap solitons of a pa rametric nature, which are sustained in periodically corrugated freque ncy-doubling media near Bragg resonance with both the fundamental freq uency and its second harmonic. ae demonstrate that a zero-velocity sol iton can be trapped in a finite Bragg structure by the quiescence of t wo counterpropagating moving solitons, which in turn might be formed b y injection of appropriate light pulses at a single carrier frequency. (C) 1998 Optical Society of America.