Stuttgart 2012 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 11: Präzisionsmessungen und Metrologie 2

Q 11.5: Talk

Monday, March 12, 2012, 15:30–15:45, V7.03

Testing the optical bench for LISA — •Maike Lieser, Christian Diekmann, Johanna Bogenstahl, Michael Tröbs, Gerhard Heinzel, and Karsten Danzmann — Max Planck Institute for Gravitational Physics (Albert-Einstein-Institut), Leibniz University Hannover

The Laser Interferometer Space Antenna (LISA) is a space-based gravitational wave detector constituted of three satellites. It is built to detect gravitational waves in the low frequency band by measuring distances between free falling test masses inside the satellites. The prototype of the so called optical bench, the main optical part of the satellites, will be completed soon and performance tests will be done in laboratory. For the testing a telescope simulator is needed to simulate the far interferometer beam coming from another satellite five million kilometers away. Here it will be focused on the test bed for the optical bench and the performance tests for the actuators on the telescope simulator. The latter are needed to align the beams and to simulate test mass motions and have to satisfy the LISA stability requirements.