Detuned Twin-Signal-Recycling for ultrahigh-precision interferometers

Thüring, Andre; Schnabel, Roman; Lück, Harald; Danzmann, Karsten

doi:10.1364/OL.32.000985

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Detuned Twin-Signal-Recycling for ultrahigh-precision interferometers

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Thüring, Andre
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Schnabel, Roman
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Lück, Harald
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Danzmann, Karsten
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Citation

Thüring, A., Schnabel, R., Lück, H., & Danzmann, K. (2007). Detuned Twin-Signal-Recycling for ultrahigh-precision interferometers. Optics Letters, 32(8), 985-987. doi:10.1364/OL.32.000985.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-493F-8

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.