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  Subtraction of test mass angular noise in the LISA technology package interferometer

Guzman Cervantes, F., Steier, F., Wanner, G., Heinzel, G., & Danzmann, K. (2008). Subtraction of test mass angular noise in the LISA technology package interferometer. Applied Physics B - Lasers and Optics, 90(3-4), 395-400. doi:10.1007/s00340-007-2923-0.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6200-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6203-A
Genre: Journal Article

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ApplPhysB90_395.pdf (Publisher version), 542KB
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 Creators:
Guzman Cervantes, Felipe1, Author              
Steier, Frank1, Author              
Wanner, Gudrun1, Author              
Heinzel, Gerhard1, Author              
Danzmann, Karsten1, Author              
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, escidoc:24010              

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 Abstract: When the position of a test mass in one dimension is measured with picometer accuracy, angular alignment jitter inevitably couples noise into the measurement. We present recent sensitivity measurements of the LISA technology package interferometer with articulated mirrors as test masses, actuated by piezo-electric transducers. The required longitudinal displacement resolution of 9pm$/\sqrt{\text{Hz}}$ above 3 mHz has been demonstrated with an angular noise that corresponds to the expected for on-orbit operation. The excess noise contribution of this test mass jitter onto the sensitive displacement readout was completely subtracted by fitting the angular interferometric data streams to the longitudinal displacement measurement. Thus, this cross-coupling constitutes no limitation to the required performance of the LISA technology package interferometry.

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Language(s): eng - English
 Dates: 2008-03
 Publication Status: Published online
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 Identifiers: DOI: 10.1007/s00340-007-2923-0
eDoc: 346519
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Title: Applied Physics B - Lasers and Optics
Source Genre: Journal
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Pages: - Volume / Issue: 90 (3-4) Sequence Number: - Start / End Page: 395 - 400 Identifier: ISSN: 1432-0649