The University of Southampton
University of Southampton Institutional Repository

State dependent pseudo-resonances and excess noise

Papoff, F., D'Alessandro, G. and Oppo, G.Luca (2008) State dependent pseudo-resonances and excess noise Physical Review Letters, 100, (12), 123905-[4pp]. (doi:10.1103/PhysRevLett.100.123905).

Record type: Article


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.

PDF submitted.pdf - Accepted Manuscript
Download (175kB)

More information

Published date: 28 March 2008
Keywords: lasers, swift-hohenberg equation, non-normal operators, sensitivity to noise


Local EPrints ID: 50796
ISSN: 0031-9007
PURE UUID: 635a0295-d58a-4f12-9fd5-3703d22be838
ORCID for G. D'Alessandro: ORCID iD

Catalogue record

Date deposited: 24 Apr 2008
Last modified: 17 Jul 2017 14:50

Export record



Author: F. Papoff
Author: G. D'Alessandro ORCID iD
Author: G.Luca Oppo

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.