DC-readout of a signal-recycled gravitational wave detector

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dc.creatorHild, S.
dc.creatorGrote, H.
dc.creatorDegallaix, J.
dc.creatorChelkowski, S.
dc.creatorDanzmann, K.
dc.creatorFreise, A.
dc.creatorHewitson, M.
dc.creatorHough, J.
dc.creatorLueck, H.
dc.creatorPrijatelj, M.
dc.creatorStrain, K. A.
dc.creatorSmith, J. R.
dc.creatorWillke, B.
dc.date2008-11-19
dc.date.accessioned2026-07-07T12:44:02Z
dc.date.available2026-07-07T12:44:02Z
dc.descriptionAll first-generation large-scale gravitational wave detectors are operated at the dark fringe and use a heterodyne readout employing radio frequency (RF) modulation-demodulation techniques. However, the experience in the currently running interferometers reveals several problems connected with a heterodyne readout, of which phase noise of the RF modulation is the most serious one. A homodyne detection scheme (DC-readout), using the highly stabilized and filtered carrier light as local oscillator for the readout, is considered to be a favourable alternative. Recently a DC-readout scheme was implemented on the GEO 600 detector. We describe the results of first measurements and give a comparison of the performance achieved with homodyne and heterodyne readout. The implications of the combined use of DC-readout and signal-recycling are considered.
dc.description11 pages
dc.identifierhttps://arxiv.org/abs/0811.3242
dc.identifierhttp://arxiv.org/abs/0811.3242
dc.identifierClass.Quant.Grav.26:055012,2009
dc.identifierdoi:10.1088/0264-9381/26/5/055012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220628
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleDC-readout of a signal-recycled gravitational wave detector
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