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

Sato, S., Kokeyama, K., Kawamura, S., Ward, R. L., Nishizawa, A., Chen, Y., Pai, A. and Somiya, K. 2008. Demonstration of displacement-noise-free interferometry using bi-directional Mach-Zehnder interferometers. Classical and Quantum Gravity 25 (11) , 114031. 10.1088/0264-9381/25/11/114031

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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 (MZIs). 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 that cancels the displacement noise of the mirrors and beam splitters while maintaining gravitational-wave signals. The attained maximum displacement noise suppression was 45 dB.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: IOP Publishing
ISSN: 0264-9381
Last Modified: 27 May 2021 11:30
URI: https://orca.cardiff.ac.uk/id/eprint/139937

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