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  dc readout experiment at the Caltech 40m prototype interferometer

Ward, R. L., Adhikari, R., Abbott, B., Abbott, R., Barron, D., Bork, R., et al. (2008). dc readout experiment at the Caltech 40m prototype interferometer. Classical and Quantum Gravity, 25(11): 114030.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-63DF-5 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-63E0-0
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Ward, R. L.1, Autor
Adhikari, R.2, Autor
Abbott, B.2, Autor
Abbott, R.2, Autor
Barron, D.2, Autor
Bork, Rolf1, Autor
Fricke, T.2, Autor
Frolov, V.2, Autor
Heefner, J.2, Autor
Ivanov, A.2, Autor
Miyakawa, O.2, Autor
McKenzie, K.2, Autor
Slagmolen, B.2, Autor
Smith, M.2, Autor
Taylor, R.2, Autor
Vass, S.2, Autor
Waldman, S.2, Autor
Weinstein, A.2, Autor
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24010              
2External Organizations, , , ou_persistent22              

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 Zusammenfassung: The Laser Interferometer Gravitational Wave Observatory (LIGO) operates a 40m prototype interferometer on the Caltech campus. The primary mission of the prototype is to serve as an experimental testbed for upgrades to the LIGO interferometers and for gaining experience with advanced interferometric techniques, including detuned resonant sideband extraction (i.e. signal recycling) and dc readout (optical homodyne detection). The former technique will be employed in Advanced LIGO, and the latter in both Enhanced and Advanced LIGO. Using dc readout for gravitational wave signal extraction has several technical advantages, including reduced laser and oscillator noise couplings as well as reduced shot noise, when compared to the traditional rf readout technique (optical heterodyne detection) currently in use in large-scale ground-based interferometric gravitational wave detectors. The Caltech 40m laboratory is currently prototyping a dc readout system for a fully suspended interferometric gravitational wave detector. The system includes an optical filter cavity at the interferometer's output port, and the associated controls and optics to ensure that the filter cavity is optimally coupled to the interferometer. We present the results of measurements to characterize noise couplings in rf and dc readout using this system.

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 Datum: 2008-06
 Publikationsstatus: Erschienen
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 Art der Begutachtung: -
 Identifikatoren: eDoc: 374006
DOI: 10.1088/0264-9381/25/11/114030
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Titel: 18th International Conference on General Relativity & Gravitation
Veranstaltungsort: Sydney, Australia
Start-/Enddatum: 2007-07-08 - 2007-07-13

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Titel: Classical and Quantum Gravity
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 25 (11) Artikelnummer: 114030 Start- / Endseite: - Identifikator: ISSN: 1361-6382