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          Institute: MPI für Gravitationsphysik     Collection: Laser Interferometry & Gravitational Wave Astronomy     Display Documents



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ID: 398255.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
Development of a signal-extraction scheme for resonant sideband extraction
Authors:Kokeyama, Keiko; Somiya, Kentaro; Kawazoe, Fumiko; Sato, S.; Kawamura, Seiji
Date of Publication (YYYY-MM-DD):2008-12-07
Title of Journal:Classical and Quantum Gravity
Volume:25
Issue / Number:23
Sequence Number of Article:235013
Review Status:not specified
Audience:Not Specified
Abstract / Description:As a future plan, an advanced gravitational-wave detector will employ an optical configuration of resonant sideband extraction (RSE), achieved with an additional mirror at the signal-detection port of the power-recycled Fabry–Perot Michelson interferometer. To control the complex coupled cavity system, one of the most important design issues is how to extract the longitudinal control signals of the cavities. We have developed a new signal-extraction scheme which provides an appropriate sensing matrix. The new method uses two sets of sidebands: one of the sideband components satisfies the critical coupling condition for the RSE interferometer and reaches the signal-extraction port, and the other sideband is completely reflected by the Michelson interferometer. They provide a diagonalized sensing matrix and enable the RSE control to be robust.
External Publication Status:published
Document Type:Article
Communicated by:Karsten Danzmann
Affiliations:MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
MPI für Gravitationsphysik/Teilinstitut Hannover
Identifiers:ISSN:0264-9381
DOI:10.1088/0264-9381/25/23/235013
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