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

Document #:

LIGO-P070130-x0

Document type:

P - Publications

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.

Files in Document:

• P070130-00.pdf (272.8 kB)

Other Files:

• P070130-P.pdf (909.4 kB)

Topics:

• Document Migration from the old DCC
• Public relations

Authors:

• Keiko Kokeyama
• Robert Ward
• Atsushi Nishizawa
• Seiji Kawamura
• Kentaro Somiya
• Archana Pai
• Yanbei Chen
• Shuichi Sato

Notes and Changes:

Rev P070130-00-Z:
- Full document number: LIGO-P070130-00-Z
- Author(s): Shuichi Sato; Keiko Kokeyama; Seiji Kawamura; Robert Ward; Atsushi Nishizawa; Yanbei Chen; Archana Pai; Kentaro Somiya
- Document date: 2007-10-24
- Document received date: 2007-10-24
- Document entry date: 2007-10-24

Journal References:

Published in Class Quant Grav vol. 25 pg. 114031 (8pp).

Publication Information:

http://www.iop.org/EJ/abstract/0264-9381/25/11/114031