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Proceedings Paper

Overview of LIGO instrumentation
Author(s): Frederick J. Raab
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Paper Abstract

The Laser Interferometer Gravitational-Wave Observatory (LIGO) consists of detector facilities in Hanford, WA and Livingston, LA, USA, separated by 3000 km. Laser interferometry is used to monitor displacements of freely suspended mirrors, separated by 2 - 4 km, along perpendicular arms at each facility. The initial LIGO detector design sensitivity corresponds to measuring gravitational-wave induced differential displacements of order 1 millifermi over the 4-km arms. Progress in the commissioning and operation of these detectors will be reviewed.

Paper Details

Date Published: 29 September 2004
PDF: 14 pages
Proc. SPIE 5500, Gravitational Wave and Particle Astrophysics Detectors, (29 September 2004); doi: 10.1117/12.552891
Show Author Affiliations
Frederick J. Raab, LIGO Hanford Observatory (United States)


Published in SPIE Proceedings Vol. 5500:
Gravitational Wave and Particle Astrophysics Detectors
James Hough; Gary H. Sanders, Editor(s)

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