On homoclinic snaking in optical systems |
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Authors: | Firth W J Columbo L Maggipinto T |
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Institution: | SUPA and Department of Physics, University of Strathclyde, 107 Rottenrow, G4 0NG Glasgow, Scotland. |
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Abstract: | The existence of localized structures, including so-called cavity solitons, in driven optical systems is discussed. In theory, they should exist only below the threshold of a subcritical modulational instability, but in experiment they often appear spontaneously on parameter variation. The addition of a nonlocal nonlinearity may resolve this discrepancy by tilting the "snaking" bifurcation diagram characteristic of such problems. |
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