Hamburg 2009 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 20: Präzisionsmessungen I
Q 20.7: Talk
Tuesday, March 3, 2009, 15:30–15:45, Audi-A
Seismically isolated optical benches for the AEI 10 m prototype interferometer — •Katrin Dahl1, Alessandro Bertolini1, Michael Born1, Jens Breyer1, Yanbei Chen2, Stefan Goßler1, Fumiko Kawazoe1, Oliver Kranz1, Gerrit Kühn1, Harald Lück1, Kasem Mossavi1, Henning Ryll1, Kentaro Somiya2, Kenneth A. Strain1, Bob Taylor1, Benno Willke1, Alexander Wanner1, and Karsten Danzmann1 — 1Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Institut für Gravitationsphysik, Leibniz Universität Hannover, Callinstr. 38, D-30167 Hannover — 2California Institute of Technology, LIGO Project - MS 18-34, Pasadena, CA 91125, USA
The AEI 10 m prototype interferometer will not only develop and test new techniques for the third generation of gravitational wave detectors, but furthermore it will probe at and beyond the standard quantum limit of interferomtry. The experiments will be set up on top of in-vacuum suspended optical tables, instead of commercial tables on the floor.
Three 1.75 m by 1.75 m optical tables will be suspended inside an ultra-high vacuum envelope in an L-shaped configuration of 10 m arm length. To provide active isolation in all 6 degrees of freedom, inertial sensors (3 horizontal and 3 vertical) will be installed inside each table. Relative longitudinal and angular motion between the tables will be monitored by an inter-table interferometer. Coil-magnet actuators will provide feedback to the tables. In this way an excellent seismic isolation - covering also low frequencies - will be achieved.