State dependent pseudoresonances and excess noise

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

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


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
Issue number12
Publication statusPublished - 28 Mar 2008


  • optics
  • excess noise
  • pseudoresonances
  • generic nonlinearsystems


Dive into the research topics of 'State dependent pseudoresonances and excess noise'. Together they form a unique fingerprint.

Cite this