Second generation instruments for the Laser Interferometer Gravitational Wave Observatory (LIGO)

Peter Fritschel

doi:10.1117/12.459090

26 February 2003 Second generation instruments for the Laser Interferometer Gravitational Wave Observatory (LIGO)

Peter Fritschel

Proceedings Volume 4856, Gravitational-Wave Detection; (2003) https://doi.org/10.1117/12.459090
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The interferometers being planned for second generation LIGO promise an order of magnitude increase in broadband strain sensitivity-with the corresponding cubic increase in detection volume-and an extension of the observation band to lower frequencies. In addition, one of the interferometers may be designed for narrowband performance, giving further improved sensitivity over roughly an octave band above a few hundred Hertz. This article discusses the physics and technology of these new interferometer designs, and presents their projected sensitivity spectra.

Citation Download Citation

Peter Fritschel "Second generation instruments for the Laser Interferometer Gravitational Wave Observatory (LIGO)", Proc. SPIE 4856, Gravitational-Wave Detection, (26 February 2003); https://doi.org/10.1117/12.459090

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