Long-baseline, high-finesse Fabry-Perot interferometers can be used to make distance measurements that are precise enough to detect gravity waves. This level of sensitivity is achieved in part when the interferometer mirrors are isolated dynamically, with pendulum mounts and high-bandwidth cavity length control servos to reduce the effects of seismic noise. We present dynamical models of the cavity fields and signals of Fabry-Perot interferometers for use in the design and evaluation of length control systems for gravity-wave detectors. Models are described and compared with experimental data.
© 2002 Optical Society of America
(000.2780) General : Gravity
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.3390) Lasers and laser optics : Laser materials processing
David Redding, Martin Regehr, and Lisa Sievers, "Dynamic Models of Fabry-Perot Interferometers," Appl. Opt. 41, 2894-2906 (2002)