Demonstration of displacement- and frequency-noise free laser interferometry using bi-directional Mach-Zehnder interferometers

Abstract

We have demonstrated displacement- and frequency-noise free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bi-directional Mach-Zehnder interferometers (MZI). This partial implementation, the minimum necessary to be called DFI, has confirmed the essential feature of DFI: the combination of two MZI signals can be carried out in a way which cancels displacement noise of the mirrors while maintaining gravitational wave signals. The attained maximum displacement noise suppression allowed a simulated-SNR of 45dB.

5 pages, 5 figures, now on PRL 98, 141101 (2007)

References in corpus (1)

• Interferometers for Displacement-Noise-Free Gravitational-Wave Detection

Cited by in corpus (4)

• Development of displacement- and frequency-noise-free interferometer in 3-D configuration for gravitational wave detection
• Displacement-noise-free gravitational-wave detection with a single Fabry-Perot cavity: a toy model
• Resonant speed meter for gravitational wave detection
• Displacement-noise-free gravitational-wave detection with two Fabry-Perot cavities