Linear projection of technical noise for interferometric gravitational-wave detectors

Smith, J.R., Ajith, P., Grote, H., Hewitson, M., Hild, S., Luck, H., Strain, K.A., Willke, B., Hough, J. and Danzmann, K. (2006) Linear projection of technical noise for interferometric gravitational-wave detectors. Classical and Quantum Gravity, 23(2), pp. 527-537. (doi: 10.1088/0264-9381/23/2/016)

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Abstract

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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hough, Professor James and Strain, Professor Kenneth
Authors: Smith, J.R., Ajith, P., Grote, H., Hewitson, M., Hild, S., Luck, H., Strain, K.A., Willke, B., Hough, J., and Danzmann, K.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Classical and Quantum Gravity
Publisher:Institute of Physics
ISSN:0264-9381
ISSN (Online):1361-6382

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