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Published February 26, 2003 | Published
Book Section - Chapter Open

Status of LIGO


LIGO construction has been completed. The three interferometers at the two LIGO observatory sites (Livingston, Louisiana and Hanford, Washington) have been operated successfully as power-recycled Michelson interferometers with Fabry-Perot arm cavities. Commissioning of the interferometers has progressed to operating them simultaneously in this final optical configuration. The initial coincidence operation between the observatory sites has provided a full test of the detector hardware and software subsystems, and full operation of the data acquisition and data analysis systems. The LIGO Laboratory and the LIGO Scientific Collaboration are working together to exploit the early series of interleaved engineering and science runs to commission the detector and data systems, to provide a detailed characterization of the detector and to produce the first scientific results from LIGO. The operation of LIGO is also coordinated with operation of the GEO 600 detector and the ALLEGRO resonant mass detector. The status of this early operation and data study will be presented.

Additional Information

© 2003 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper briefly describes the current status of the efforts by a remarkable group of people, the staff and collaborators in the LIGO effort. There is a great deal of admirable work that cannot be described in this short conference paper. The US National Science Foundation, under awards PHY-9210038 and PHY-0107417, has supported the LIGO effort.

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