State dependent pseudoresonances and excess noise

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

Research output: Contribution to journalArticle

14 Citations (Scopus)

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.
LanguageEnglish
Article number123905
Number of pages4
JournalPhysical Review Letters
Volume100
Issue number12
DOIs
Publication statusPublished - 28 Mar 2008

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modulation
output
nonlinear systems
optics
operators
cavities

Keywords

  • optics
  • excess noise
  • pseudoresonances
  • generic nonlinearsystems

Cite this

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State dependent pseudoresonances and excess noise. / Papoff, F.; D'Alessandro, G.; Oppo, G.L.

In: Physical Review Letters, Vol. 100, No. 12, 123905 , 28.03.2008.

Research output: Contribution to journalArticle

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T1 - State dependent pseudoresonances and excess noise

AU - Papoff, F.

AU - D'Alessandro, G.

AU - Oppo, G.L.

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N2 - 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.

AB - 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.

KW - optics

KW - excess noise

KW - pseudoresonances

KW - generic nonlinearsystems

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DO - 10.1103/PhysRevLett.100.123905

M3 - Article

VL - 100

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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