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Abstracts |
R. Abbott, P. King
To meet the sensitivity requirements[1], [2] of the Laser Interferometer Gravitational Wave Observatory (LIGO), the laser frequency and amplitude noise must initially be reduced by a factor of 1000 in the pre-stabilized portion of the interferometer [3]. A control system was implemented to provide laser noise suppression, data acquisition interfaces, diagnostics, and operator control inputs. This paper describes the VME-based analog and digital controls used in the LIGO Pre-stabilized Laser (PSL).
[1] A. Abramovici, et al., 'LIGO: The Laser Interferometer Gravitational-Wave Observatory, 'Science {\bf 256} (1992) 325-333
[2] A. Lazzarini, R. Weiss, 'LIGO Science Requirements Document (SRD), 'Internal LIGO Document
[3] P. King et al., '(Infrared) Pre-Stabilized Laser (PSL) Design Requirements, 'Internal LIGO Document
{*} Work supported by the National Science Foundation
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C011127
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ICALEPCS 2001
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