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dc.contributor.authorBerry, DW
dc.contributor.authorWiseman, HM
dc.contributor.editorPeter Knight
dc.date.accessioned2017-05-03T13:32:12Z
dc.date.available2017-05-03T13:32:12Z
dc.date.issued2001
dc.date.modified2009-12-01T05:24:13Z
dc.identifier.issn0950-0340
dc.identifier.doi10.1080/09500340108230953
dc.identifier.urihttp://hdl.handle.net/10072/3742
dc.description.abstractIt is not possible to make measurements of the phase of an optical mode using linear optics without introducing an extra phase uncertainty. This extra phase variance is quite large for heterodyne measurements, however it is possible to reduce it to the theoretical limit of log (n)macr/(4(n)macr2) using adaptive measurements. These measurements are quite sensitive to experimental inaccuracies, especially time delays and inefficient detectors. Here it is shown that the minimum introduced phase variance when there is a time delay of log t is t/(8(n)macr). This result is verified numerically, showing that the phase variance introduced approaches this limit for most of the adaptive schemes using the best final phase estimate. The main exception is the adaptive mark II scheme with simplified feedback, which is extremely sensitive to time delays. The extra phase variance due to time delays is considered for the mark I case with simplified feedback, verifying the t/2 result obtained by Wiseman and Killip both by a more rigorous analytic technique and numerically.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent113155 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherTaylor & Francis
dc.publisher.placeUK
dc.publisher.urihttp://www.informaworld.com/smpp/title~db=all~content=t713191304
dc.relation.ispartofpagefrom797
dc.relation.ispartofpageto809
dc.relation.ispartofedition-
dc.relation.ispartofissue5
dc.relation.ispartofjournalJournal of Modern Optics
dc.relation.ispartofvolume48
dc.subject.fieldofresearchAtomic, molecular and optical physics
dc.subject.fieldofresearchQuantum physics
dc.subject.fieldofresearchNanotechnology
dc.subject.fieldofresearchcode5102
dc.subject.fieldofresearchcode5108
dc.subject.fieldofresearchcode4018
dc.titleThe effects of time delays in adaptive phase measurements
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2001 Taylor & Francis. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2001
gro.hasfulltextFull Text
gro.griffith.authorWiseman, Howard M.


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