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Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer

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Publication:2476332

DOI10.1016/J.PHYSLETA.2004.04.066zbMATH Open1138.83305arXivgr-qc/0404048OpenAlexW2040191897WikidataQ62118274 ScholiaQ62118274MaRDI QIDQ2476332

Author name not available (Why is that?)

Publication date: 19 March 2008

Published in: (Search for Journal in Brave)

Abstract: A suspension-point interferometer (SPI) is an auxiliary interferometer for active vibration isolation, implemented at the suspension points of the mirrors of an interferometric gravitational wave detector. We constructed a prototype Fabry-Perot interferometer equipped with an SPI and observed vibration isolation in both the spectrum and transfer function. The noise spectrum of the main interferometer was reduced by 40 dB below 1 Hz. Transfer function measurements showed that the SPI also produced good vibration suppression above 1 Hz. These results indicate that SPI can improve both the sensitivity and the stability of the interferometer.


Full work available at URL: https://arxiv.org/abs/gr-qc/0404048



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