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A thermal compensation system for the gravitational wave detector virgo

Accadia, T; Acernese, F; Antonucci, F; Astone, P; Barone, F; Bauer, T.S.; Bradaschia, C; Genin, E; Huet, D; Rabeling, David; Van Den Brand, J.

Description

Thermal lensing due to the absorption of the laser beam in core optics of gravitational wave interferometers can represent a strong limitation to their operation and sensitivity. This effect has already been observed in the present detectors and will become more relevant in the future upgraded interferometers, due to the much higher circulating power. A thermal compensation system, based on a CO2 laser projector, has been installed in Virgo, allowing to increase the interferometer input power...[Show more]

dc.contributor.authorAccadia, T
dc.contributor.authorAcernese, F
dc.contributor.authorAntonucci, F
dc.contributor.authorAstone, P
dc.contributor.authorBarone, F
dc.contributor.authorBauer, T.S.
dc.contributor.authorBradaschia, C
dc.contributor.authorGenin, E
dc.contributor.authorHuet, D
dc.contributor.authorRabeling, David
dc.contributor.authorVan Den Brand, J.
dc.coverage.spatialParis
dc.date.accessioned2015-12-13T22:22:45Z
dc.date.available2015-12-13T22:22:45Z
dc.date.createdJuly 12-18 2009
dc.identifier.isbn9789814374514
dc.identifier.urihttp://hdl.handle.net/1885/72405
dc.description.abstractThermal lensing due to the absorption of the laser beam in core optics of gravitational wave interferometers can represent a strong limitation to their operation and sensitivity. This effect has already been observed in the present detectors and will become more relevant in the future upgraded interferometers, due to the much higher circulating power. A thermal compensation system, based on a CO2 laser projector, has been installed in Virgo, allowing to increase the interferometer input power from 7 to 17 W. The thermal compensation system can introduce displacement noise by means of several mechanisms. This noise depends on the CO2 laser intensity fluctuations and on the power needed to compensate thermal effects. To make the displacement noise compliant with Virgo specifications, a feedback system to reduce the CO 2 laser intensity fluctuations has been implemented.
dc.publisherConference Organising Committee
dc.relation.ispartofseries12th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, MG 2009
dc.source12th Marcel Grossmann Meeting on Recent Dev. in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proc. of the MG 2009 Meeting on General Relativity
dc.subjectKeywords: Circulating power; Displacement noise; Gravitational wave detectors; Gravitational wave interferometers; Interferometric detectors; Laser intensity fluctuations; Thermal compensation; Thermal lensing; Astrophysics; Detectors; Gravitational effects; Gravit Gravitational waves; Interferometric detectors; Thermal lensing
dc.titleA thermal compensation system for the gravitational wave detector virgo
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2012
local.identifier.absfor020105 - General Relativity and Gravitational Waves
local.identifier.ariespublicationU3488905xPUB3229
local.type.statusPublished Version
local.contributor.affiliationAccadia, T, Universite de Savoie
local.contributor.affiliationAcernese, F, INFN
local.contributor.affiliationAntonucci, F, IFN
local.contributor.affiliationAstone, P, INFN
local.contributor.affiliationBarone, F, Università di Salerno
local.contributor.affiliationBauer, T.S., National Institute for Subatomic Sciences
local.contributor.affiliationBradaschia, C, Universita di Pisa
local.contributor.affiliationGenin, E, European Gravitational Observatory
local.contributor.affiliationHuet, D, European Gravitational Observatory
local.contributor.affiliationRabeling, David, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationVan Den Brand, J., VU University Amsterdam
local.bibliographicCitation.startpage1652
local.bibliographicCitation.lastpage1656
dc.date.updated2016-02-24T10:04:39Z
local.identifier.scopusID2-s2.0-84885674090
CollectionsANU Research Publications

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