Performance of the LIGO Pre-Stabilized Laser System

Details Performance of the LIGO Pre-Stabilized Laser System Performance of the LIGO Pre-Stabilized Laser System

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.1839s&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

The pre-stabilized laser system (PSL) provides frequency- and intensity-stabilized laser light to the LIGO interferometers. The first pre-stabilized laser system was installed at the LIGO Hanford Observatory (LHO) in December, 1998 and has subsequently operated continuously for more than 18,000 hours. Based on this experience, several upgrades to the optical elements and feedback control loops have been implemented. All elements excepts the relative power stabilization control loop are operational. The system now maintains lock of its control loops for weeks or even months at a time. A second PSL is operating at the LIGO Livingston Observatory (LLO) and a third is presently being installed for the second interferometer at the LHO.

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