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State dependent pseudo-resonances and excess noise

By F. Papoff, G. D'Alessandro and G.Luca Oppo

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

Topics: QA, QC
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:50796
Provided by: e-Prints Soton

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