Skip navigation
Skip navigation

Subfrequency noise signal extraction in fiber-optic strain sensors using postprocessing

Lam, Timothy T-Y; Gray, Malcolm B; Shaddock, Daniel A; McClelland, David E; Chow, Jong H


Laser frequency fluctuations typically limit the performance of high-resolution interferometric fiber strain sensors. Using time delay interferometry, we demonstrate a frequency noise immune fiber sensing system, where strain signals were extracted well below the noise floor normally imposed by the frequency fluctuations of the laser. Initial measurements show a reduction in the noise floor by a factor of 30, with strain sensitivities of a nanostrain/Hz at 100 mHz and reaching 100 ps/Hz at 1...[Show more]

CollectionsANU Research Publications
Date published: 2012-06-01
Type: Journal article
Source: Optics letters
DOI: 10.1364/OL.37.002169


There are no files associated with this item.

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator