M Hewitson et al 2004 Class. Quantum Grav. 21 S1711 doi:10.1088/0264-9381/21/20/014
M Hewitson1, S Babak4, R Balasubramanian4, K Danzmann1, H Grote1, G Heinzel1, J Hough2, H Lück1, M A Papa3, J R Smith1, K A Strain2, H Ward2, B Willke1 and G Woan2
Show affiliationsThe GEO 600 interferometric gravitational detector took part in an extended coincident science run of the LIGO Scientific Collaboration (S3) that started in November 2003. GEO had recently been upgraded to be the first large-scale fully suspended dual-recycled interferometer in the world and was in the early stages of commissioning in this configuration. In order to prepare the GEO 600 data for the possible extraction of science results and for exchange between analysis groups of the gravitational wave community, the data need to be accurately calibrated. An online, time-domain calibration scheme that was initially developed to calibrate the power-recycled GEO 600 configuration, has been extended to cover the significantly more complicated case of calibrating the dual-recycled interferometer, where the optical response of the instrument is much more difficult to measure and calibrate out online. This report presents an overview of this calibration scheme as it was applied to calibrating the GEO S3 science run data. In addition, results of the calibration process are presented together with some discussion of the accuracy achieved.
Issue 20 (21 October 2004)
Received 19 April 2004
Published 28 September 2004
M Hewitson et al 2004 Class. Quantum Grav. 21 S1711
B Allen et al 2004 Class. Quantum Grav. 21 S671
Leila Taher et al 2007 J. Phys.: Conf. Ser. 90 012004
Satoshi Yamaguchi JHEP10(2002)002
Vijay Balasubramanian et al JHEP05(2000)014
Clifford V. Johnson et al JHEP05(2001)036
Vanicson L. Campos et al JHEP06(2000)023
Vatche Sahakian JHEP05(2000)011
P C W Davies 1978 Rep. Prog. Phys. 41 1313
K J Hinton 1983 J. Phys. A: Math. Gen. 16 1937