B. Willke
Albert Einstein Institution
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Featured researches published by B. Willke.
Classical and Quantum Gravity | 2006
J. R. Smith; P. Ajith; H. Grote; M. Hewitson; S. Hild; H. Lück; K. A. Strain; B. Willke; J. Hough; Karsten Danzmann
An international network of interferometric gravitational-wave detectors is now in operation, and has entered a period of intense commissioning focused on bringing the instruments to their theoretical sensitivity limits. To expedite this process, noise analysis techniques have been developed by the groups associated with each instrument. We present methods of noise analysis that were developed and utilized for the commissioning of the GEO 600 detector. The focal point of this paper is a technique called noise projection that is used to determine the levels of contribution of various noise sources to the detector output. Example applications of this method to control loops typical of those employed in an interferometric GW detector are presented. Possible extensions of noise projections, including technical noise subtraction and gravitational-wave vetoes are also discussed.
Proceedings of SPIE - The International Society for Optical Engineering | 2002
B. Willke; P. Aufmuth; C. Aulbert; S. Babak; R. Balasubramanian; B. Barr; S. J. Berukoff; S. Bose; G. Cagnoli; M. M. Casey; D. Churches; C. N. Colacino; D. R. M. Crooks; Curt Cutler; Karsten Danzmann; R. Davies; R. J. Dupuis; E. J. Elliffe; Carsten Fallnich; A. Freise; S. Goßler; A. Grant; H. Grote; J. Harms; Gerhard Heinzel; S. Herden; A. Hepstonstall; M. Heurs; M. Hewitson; J. Hough
The GEO600 laser interferometric gravitational wave detector is approaching the end of its commissioning phase which started in 1995. During a test run in January 2002 the detector was operated for 15 days in a power-recycled michelson configuration. The detector and environmental data which were acquired during this test run were used to test the data analysis code. This paper describes the subsystems of GEO600, the status of the detector by August 2002 and the plans towards the first science run.
