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Picometer level displacement metrology with digitally enhanced heterodyne interferometry

De Vine, Glenn; Rabeling, D; Slagmolen, Bram Johannes Jozef; Lam, Timothy; Chua, Sheon (SSSY); Wuchenich, Danielle; McClelland, David; Shaddock, Daniel

Description

Digitally enhanced heterodyne interferometry is a laser metrology technique employing pseudo-random codes phase modulated onto an optical carrier. We present the first characterization of the technique’s displacement sensitivity. The displacement of an optical cavity was measured using digitally enhanced heterodyne interferometry and compared to a simultaneous readout based on conventional Pound-Drever-Hall locking. The techniques agreed to within 5 pm/√Hz at 1 Hz, providing an...[Show more]

dc.contributor.authorDe Vine, Glenn
dc.contributor.authorRabeling, D
dc.contributor.authorSlagmolen, Bram Johannes Jozef
dc.contributor.authorLam, Timothy
dc.contributor.authorChua, Sheon (SSSY)
dc.contributor.authorWuchenich, Danielle
dc.contributor.authorMcClelland, David
dc.contributor.authorShaddock, Daniel
dc.date.accessioned2010-07-16T03:44:10Z
dc.date.accessioned2010-12-20T06:03:33Z
dc.date.available2010-07-16T03:44:10Z
dc.date.available2010-12-20T06:03:33Z
dc.identifier.citationOptics Express 17.2 (2009): 828-837
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/10440/1043
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/10440/1043
dc.description.abstractDigitally enhanced heterodyne interferometry is a laser metrology technique employing pseudo-random codes phase modulated onto an optical carrier. We present the first characterization of the technique’s displacement sensitivity. The displacement of an optical cavity was measured using digitally enhanced heterodyne interferometry and compared to a simultaneous readout based on conventional Pound-Drever-Hall locking. The techniques agreed to within 5 pm/√Hz at 1 Hz, providing an upper bound to the displacement noise of digitally enhanced heterodyne interferometry. These measurements employed a real-time signal extraction system implemented on a field programmable gate array, suitable for closed-loop control applications. We discuss the applicability of digitally enhanced heterodyne interferometry for lock acquisition of advanced gravitational wave detectors.
dc.format10 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%2FD952ADD8%2DBDB9%2D137E%2DCC3884B981B9A360%5F175773%2Epdf%3Fda%3D1%26id%3D175773%26seq%3D0%26mobile%3Dno&org=
dc.subjectinstrumentation, measurement, and metrology
dc.subjectheterodyne detectors
dc.titlePicometer level displacement metrology with digitally enhanced heterodyne interferometry
dc.typeJournal article
local.identifier.citationvolume17
dcterms.dateAccepted2009-01-06
dc.date.issued2009-01-09
local.identifier.absfor020105
local.identifier.ariespublicationu4103646xPUB136
local.publisher.urlhttp://www.osa.org/
local.type.statusPublished Version
local.contributor.affiliationDe Vine, Glenn, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationRabeling, David, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSlagmolen, Bram, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationLam, Timothy, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationChua, Sheon, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWuchenich, Danielle, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMcClelland, David, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationShaddock, Daniel, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage828
local.bibliographicCitation.lastpage837
local.identifier.doi10.1364/OE.17.000828
dc.date.updated2015-12-08T10:22:05Z
local.identifier.scopusID2-s2.0-58449132277
CollectionsANU Research Publications

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