solitons de cavit© dans les lasers   semi-conducteurs   cavit© verticale

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Solitons de Cavité dans les Lasers à Semi-conducteurs à Cavité Verticale. M. Giudici Thèse pour obtenir l’Habilitation à Diriger les Recherches. Plan de la présentation. Introduction Montage Expérimentale Existence des Solitons de Cavité Contrôle des Solitons de Cavité et Applications - PowerPoint PPT Presentation

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  • Solitons de Cavit dans les Lasers Semi-conducteurs Cavit VerticaleM. Giudici

    Thse pour obtenir lHabilitation Diriger les Recherches

  • Plan de la prsentationIntroductionMontage ExprimentaleExistence des Solitons de CavitContrle des Solitons de Cavit et ApplicationsMouvement des SCs en prsence de dfauts locauxConclusions & Perspectives

  • 1. IntroductionDEFINITION OPERATIVELes Solitons de Cavit sont des pics de lumire que lon peut former dans le plan transverse dun rsonateur. Ils peuvent tre allums et teints individuellement par une perturbation locale externe (pulse dadressage)CONDITIONS NECESSAIRES

    Systme spatialement tendu : la longueur de corrlation est plus petite que la taille du systme (grand nombre de Fresnel)

    Prsence de Bistabilit ou Multistabilit. Diffrentes structures spatiales doivent coexister dans une mme rgion de lespace des paramtres

  • STRUCTURES LOCALISEESLes structures localises apparaissent dans des systmes spatialement tendus en prsence dune instabilit modulationelle sous-critiqueLes solitons de cavit sont des structure localises un seul pic dans le plan transverse dun systme optique. Proprits diffrentes par rapport aux Solitons de Fibres et aux Solitons Spatiaux bass sur la propagation.

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