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Pico-strain multiplexed fiber optic sensor array operating down to infra-sonic frequencies

Littler, I C M; Gray, Malcolm B; Chow, Jong; Shaddock, Daniel; McClelland, David

Description

An integrated sensor system is presented which displays passive long range operation to 100 km at pico-strain (pε) sensitivity to low frequencies (4 Hz) in wavelength division multiplexed operation with negligible cross-talk (better than −75 dB). This has been achieved by prestabilizing and multiplexing all interrogation lasers for the sensor array to a single optical frequency reference. This single frequency reference allows each laser to be locked to an arbitrary wavelength and...[Show more]

dc.contributor.authorLittler, I C M
dc.contributor.authorGray, Malcolm B
dc.contributor.authorChow, Jong
dc.contributor.authorShaddock, Daniel
dc.contributor.authorMcClelland, David
dc.date.accessioned2010-07-16T04:14:44Z
dc.date.accessioned2010-12-20T06:06:11Z
dc.date.available2010-07-16T04:14:44Z
dc.date.available2010-12-20T06:06:11Z
dc.identifier.citationOptics Express 17.13 (2009): 11077-11087
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/10440/1044
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/10440/1044
dc.description.abstractAn integrated sensor system is presented which displays passive long range operation to 100 km at pico-strain (pε) sensitivity to low frequencies (4 Hz) in wavelength division multiplexed operation with negligible cross-talk (better than −75 dB). This has been achieved by prestabilizing and multiplexing all interrogation lasers for the sensor array to a single optical frequency reference. This single frequency reference allows each laser to be locked to an arbitrary wavelength and independently tuned, while maintaining suppression of laser frequency noise. With appropriate packaging, such a multiplexed strain sensing system can form the core of a low frequency accelerometer or hydrophone array.
dc.format11 pages
dc.publisherOptical Society of America
dc.rights"OSA will grant the authors permission to deposit the publisher’s pdf from their Optics Express articles into the repository with the proper citation (reference number or journal /volume/page/year citation)." - from email received from Authorized Agent, The Optical Society, 27/05/10
dc.sourceOptics Express
dc.source.urihttp://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww%2Eopticsinfobase%2Eorg%2FDirectPDFAccess%2FD97061EF%2DBDB9%2D137E%2DC04249D5EB37FF09%5F182904%2Epdf%3Fda%3D1%26id%3D182904%26seq%3D0%26mobile%3Dno&org=
dc.subjectoptical systems
dc.subjectlaser stabilization
dc.subjectlasers, distributed-feedback
dc.subjectmultiplexing
dc.subjectfiber optics sensors
dc.subjectfiber Bragg gratings
dc.titlePico-strain multiplexed fiber optic sensor array operating down to infra-sonic frequencies
dc.typeJournal article
local.identifier.citationvolume17
dcterms.dateAccepted2009-06-15
dc.date.issued2009-06-18
local.identifier.absfor020105
local.identifier.ariespublicationu4103646xPUB137
local.publisher.urlhttp://www.osa.org/
local.type.statusPublished Version
local.contributor.affiliationLittler, Ian, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationGray, Malcolm, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationChow, Jong , College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationShaddock, Daniel, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMcClelland, David, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.issue13
local.bibliographicCitation.startpage11077
local.bibliographicCitation.lastpage11087
local.identifier.doi10.1364/OE.17.011077
dc.date.updated2015-12-08T10:23:34Z
local.identifier.scopusID2-s2.0-67649261950
local.identifier.thomsonID000267761100068
CollectionsANU Research Publications

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