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  Suspension platform interferometer for the AEI 10m prototype: concept, design and optical layout

Dahl, K., Kranz, O., Heinzel, G., Willke, B., Strain, K. A., Goßler, S., et al. (2012). Suspension platform interferometer for the AEI 10m prototype: concept, design and optical layout. Classical and quantum gravity, 29(9): 095024. doi:10.1088/0264-9381/29/9/095024.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-A55C-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-A55E-C
Genre: Journal Article

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1201.4718 (Preprint), 653KB
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 Creators:
Dahl, Katrin1, Author              
Kranz, Oliver1, Author              
Heinzel, Gerhard1, Author              
Willke, Benno1, Author              
Strain, Kenneth A.1, Author              
Goßler, Stefan1, Author              
Danzmann, Karsten1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              

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Free keywords: Physics, Optics, physics.optics, Physics, Instrumentation and Detectors, physics.ins-det
 Abstract: At present a 10\,m prototype interferometer facility is being set up at the AEI Hannover. One unique feature of the prototype will be the suspension platform interferometer (SPI). The purpose of the SPI is to monitor and stabilise the relative motion between three seismically isolated optical tables. The in-vacuum tables are suspended in an L-shaped configuration with an arm length of 11.65\,m. The design goal of the SPI is to stabilise longitudinal differential displacements to a level of 100\,pm/$\sqrt{\mathrm{Hz}}$ between 10\,mHz and 100\,Hz and relative angular noise of 10\,nrad/$\sqrt{\mathrm{Hz}}$ in the same frequency band. This paper covers the design aspects of the SPI, e.g. cross-coupling between the different degrees of freedom and fibre pointing noise are investigated. A simulation is presented which shows that with the chosen optical design of the SPI all degrees of table motion can be sensed in a fully decoupled way. Furthermore, a proof of principle test of the SPI sensing scheme is shown.

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 Dates: 2012-01-232012
 Publication Status: Published in print
 Pages: 12 pages, 6 figures
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 Rev. Method: -
 Identifiers: arXiv: 1201.4718
DOI: 10.1088/0264-9381/29/9/095024
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 29 (9) Sequence Number: 095024 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925513480_1