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dc.contributor.authorGordon, Georgeen
dc.contributor.authorMouthaan, Ralfen
dc.contributor.authorWilkinson, Timothyen
dc.contributor.authorBohndiek, Sarahen
dc.date.accessioned2019-06-07T23:30:15Z
dc.date.available2019-06-07T23:30:15Z
dc.date.issued2019-11-15en
dc.identifier.issn0733-8724
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/293481
dc.description.abstractImaging through optical fibres has recently emerged as a promising method of micro-scale optical imaging within a hair-thin form factor. This has significant applications in endoscopy and may enable minimally invasive imaging deep within live tissue for improved diagnosis of disease. Multi-mode fibres (MMF) are the most common choice because of their high resolution but multicore fibres (MCF) offer a number of advantages such as widespread clinical use, ability to form approximate images without correction and an inherently sparse transmission matrix (TM) enabling simple and fast characterisation. We present a novel experimental investigation into properties of MCF important for imaging, specifically: a new method to upsample and downsample measured TMs with minimal information loss, the first experimental measurement of MCF spatial eigenmodes, a novel statistical treatment of behaviour under bending based on a wireless fading model, and an experimental observation of TM drift due to self-heating effects and discussion of how to compensate this. We next present practical techniques for imaging through MCFs, including alignment, how to parallelise TM characterisation measurements to improve speed and how to use non-interferometric phase and polarisation recovery for improved stability. Finally, we present two recent applications of MCF imaging: polarimetric imaging using a robust Bayesian inference approach, and entropic imaging for imaging early-stage tumours.
dc.publisherOptical Society of America
dc.rightsAll rights reserved
dc.titleCoherent Imaging through Multicore Fibres with Applications in Endoscopyen
dc.typeArticle
prism.endingPage5745
prism.issueIdentifier22en
prism.publicationDate2019en
prism.publicationNameJournal of Lightwave Technologyen
prism.startingPage5733
prism.volume37en
dc.identifier.doi10.17863/CAM.40625
dcterms.dateAccepted2019-06-02en
rioxxterms.versionofrecord10.1109/JLT.2019.2932901en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-11-15en
dc.contributor.orcidGordon, George [0000-0002-7333-5106]
dc.contributor.orcidMouthaan, Ralf [0000-0001-9817-0742]
dc.contributor.orcidWilkinson, Timothy [0000-0001-8885-1288]
dc.contributor.orcidBohndiek, Sarah [0000-0003-0371-8635]
dc.identifier.eissn1558-2213
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Commission (630729)
pubs.funder-project-idCancer Research UK (16267)
pubs.funder-project-idCancer Research UK (C14303/A17197)
pubs.funder-project-idCancer Research UK (C14303_do not transfer)
pubs.funder-project-idCancer Research UK (24669)
pubs.funder-project-idEPSRC (EP/R003599/1)
pubs.funder-project-idEPSRC (EP/J009369/1)
pubs.funder-project-idCancer Research UK (21102)
pubs.funder-project-idEPSRC (EP/L015889/1)
pubs.funder-project-idCancer Research UK (C20/A20976)
pubs.funder-project-idEPSRC (EP/N014588/1)
cam.orpheus.successThu Jan 30 10:43:51 GMT 2020 - Embargo updated*
rioxxterms.freetoread.startdate2019-11-15


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