State dependent pseudoresonances and excess noise

F. Papoff, G. D'Alessandro, G.L. Oppo

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Abstract

We show that strong response to nonresonant modulations and excess noise are state dependent in generic nonlinear systems; i.e., they affect some output states but are absent from others. This is demonstrated in complex Swift-Hohenberg models relevant to optics, where it is caused by the non-normality of the linearized stability operators around selected output states, even though the cavity modes are orthogonal. In particular, we find the effective parameters that control excess noise and the response to modulations and show cases where these phenomena are enhanced by an order of magnitude.
Original languageEnglish
Article number123905
Number of pages4
JournalPhysical Review Letters
Volume100
Issue number12
DOIs
Publication statusPublished - 28 Mar 2008

Keywords

  • optics
  • excess noise
  • pseudoresonances
  • generic nonlinearsystems

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