title: Detuned Twin-Signal-Recycling for ultrahigh-precision interferometers.
abstract: We propose a new interferometer technique for high-precision phase measurements such as those in gravitational wave detection. The technique utilizes a pair of optically coupled resonators that provide identical resonance conditions for the upper as well the lower phase modulation signal sidebands. This symmetry significantly reduces the noise spectral density in a wide frequency band compared with single-sideband recycling topologies of current and planned gravitational wave detectors. Furthermore, the application of squeezed states of light becomes less demanding.
authors: Institut für Gravitationsphysik, Leibniz Universtität Hannover, Hannover, Germany. andre.thuering@aei.mpg.de
authors: André
authors: A
authors: Thüring
authors: R
authors: R
authors: Schnabel
authors: H
authors: H
authors: Lück
authors: K
authors: K
authors: Danzmann