We show that a model based on anticrossing between highly group velocity-mismatched gap-guided and index-guided modes describes gap soliton propagation in photonic crystal waveguides. Such non-linear solutions can be exploited for exploring new regimes such as all-optical control of group velocity (dispersionless slow light) over a submillimeter length scale, and propagation beyond the linear modal cutoff. The results are validated by means of finite-difference time domain simulations.
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Martin Luther Univ Halle Wittenberg, Inst Phys, D-06099 Halle, GermanyUniv Duisburg Essen, Fac Engn, Gen & Theoret Elect Engn ATE, D-47048 Duisburg, Germany
Chotorlishvili, Levan
Werner, Douglas H.
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Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USAUniv Duisburg Essen, Fac Engn, Gen & Theoret Elect Engn ATE, D-47048 Duisburg, Germany
Werner, Douglas H.
Berakdar, Jamal
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Martin Luther Univ Halle Wittenberg, Inst Phys, D-06099 Halle, GermanyUniv Duisburg Essen, Fac Engn, Gen & Theoret Elect Engn ATE, D-47048 Duisburg, Germany