The status of GEO 600

doi:10.1088/0264-9381/22/10/009

The status of GEO 600

H Grote et al 2005 Class. Quantum Grav. 22 S193-S198 doi: 10.1088/0264-9381/22/10/009

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H Grote¹, B Allen², P Aufmuth¹, C Aulbert², S Babak³, R Balasubramanian³, B W Barr⁴, S Berukoff², A Bunkowski¹, G Cagnoli⁴, C A Cantley⁴, M M Casey⁴, S Chelkowski¹, D Churches³, T Cokelaer³, C N Colacino¹, D R M Crooks⁴, C Cutler², K Danzmann¹, R Davies³, R J Dupuis⁴, E Elliffe⁴, C Fallnich⁵, A Franzen¹, A Freise¹, S Goßler¹, A Grant⁴, S Grunewald², J Harms¹, G Heinzel¹, I S Heng¹, A Hepstonstall⁴, M Heurs¹, M Hewitson⁴, S Hild¹, J Hough⁴, Y Itoh², R Jones⁴, S H Huttner⁴, K Kawabe⁴, C Killow⁴, K Kötter¹, B Krishnan², V Leonhardt¹, H Lück¹, B Machenschalk², M Malec¹, R A Mercer⁶, C Messenger⁶, S Mohanty², K Mossavi¹, S Mukherjee², P Murray⁴, S Nagano¹, G P Newton⁴, M A Papa², M Perreur-Lloyd⁴, M Pitkin⁴, M V Plissi⁴, V Quetschke¹, V Re⁶, S Reid⁴, L Ribichini¹, D I Robertson⁴, N A Robertson^4,7, J D Romano³, S Rowan⁴, A Rüdiger¹, B S Sathyaprakash³, R Schilling¹, R Schnabel¹, B F Schutz^2,3, F Seifert¹, A M Sintes⁸, J R Smith¹, P H Sneddon⁴, K A Strain⁴, I Taylor³, R Taylor⁴, A Thüring¹, C Ungarelli⁶, H Vahlbruch¹, A Vecchio⁶, J Veitch⁴, H Ward⁴, U Weiland¹, H Welling⁵, P Williams², B Willke¹, W Winkler¹, G Woan⁴ and I Zawischa⁵
¹ Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) und Universität Hannover, Callinstr. 38, D-30167 Hannover, Germany
² Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Golm Am Mühlenberg 1, 14476 Golm, Germany
³ Department of Physics and Astronomy, Cardiff University, PO Box 913, Cardiff CF2 3YB, UK
⁴ Department of Physics & Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
⁵ Laser Zentrum Hannover e. V., Hollerithallee 8, 30419 Hannover, Germany
⁶ School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
⁷ Edward L Ginzton Laboratory, Stanford University, Stanford, CA 94305-4088, USA
⁸ Departament de Fisica, Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain
E-mail: hartmut.grote@aei.mpg.de

Abstract. Since December 2003, the gravitational-wave detector GEO 600 has routinely operated in the dual recycled mode, using a lock acquisition scheme based on the detection of optical sideband power at the dark port. With the detector locking very robustly, the current commissioning work is entirely dedicated to sensitivity improvements. We give a brief overview of the GEO 600 detector, the implementation of dual recycling, and summarize recent work regarding the increase in the detector sensitivity.

PACS numbers: 04.80.Nn, 07.60.Ly, 95.55.Ym

Print publication: Issue 10 (21 May 2005)
Received 27 October 2004
Published 21 April 2005

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The status of GEO 600

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