Shot-noise-limited sensitivity is calculated for gravitational-wave interferometers with Fabry–Perot arms, similar to those being installed at the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Italian–French Laser Interferometer Collaboration (VIRGO) facility. This calculation includes the effect of nonstationary shot noise that is due to phase modulation of the light. The resulting formula is experimentally verified by a test interferometer with suspended mirrors in the 40-m arms.
© 2000 Optical Society of America
(000.2780) General : Gravity
(030.5260) Coherence and statistical optics : Photon counting
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
Torrey T. Lyons, Martin W. Regehr, and Frederick J. Raab, "Shot Noise in Gravitational-Wave Detectors with Fabry-Perot Arms," Appl. Opt. 39, 6761-6770 (2000)