Experimental electric field visualisation of multi-mode dynamics in a short cavity swept laser designed for OCT applications

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dc.contributor.authorButler, T. P.
dc.contributor.authorGoulding, David
dc.contributor.authorSlepneva, Svetlana
dc.contributor.authorO'Shaughnessy, Ben
dc.contributor.authorHegarty, Stephen. P.
dc.contributor.authorHuyet, G.
dc.contributor.authorKelleher, Bryan
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2019-11-23T06:41:04Z
dc.date.available2019-11-23T06:41:04Z
dc.date.issued2019-03-04
dc.description.abstractAn experimental study into the modal dynamics of a short cavity, fast frequency-swept laser is presented. This commercially available external cavity swept source is designed for use in optical coherence tomography (OCT) applications and displays a number of dynamic lasing regimes during the course of the wavelength sweep. Interferometric full electric field reconstruction is employed, allowing for measurement of the laser operation in a time-resolved, single-shot manner. Recovery of both the phase and intensity of the laser output across the entire sweep enables direct visualization of the laser instantaneous optical spectrum. The electric field reconstruction technique reveals the presence of multi-mode dynamics, including coherent mode-locked pulses. During the main part of the imaging sweep, the laser is found to operate in a second harmonic sliding frequency mode-locking regime. Examination of the modal evolution of this coherent regime reveals evidence of previously unobserved frequency switching dynamics.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid351534en
dc.identifier.citationButler, T.P., Goulding, D., Slepneva, S., O’Shaughnessy, B., Hegarty, S.P., Huyet, G. and Kelleher, B. (2019) 'Experimental electric field visualisation of multi-mode dynamics in a short cavity swept laser designed for OCT applications'. Optics express, 27(5), pp. 7307-7318 doi:10.1364/OE.27.007307en
dc.identifier.doi10.1364/OE.27.007307en
dc.identifier.eissn1094-4087
dc.identifier.endpage7318en
dc.identifier.issued5en
dc.identifier.journaltitleOptics Expressen
dc.identifier.startpage7307en
dc.identifier.urihttps://hdl.handle.net/10468/9194
dc.identifier.volume27en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Principal Investigator Programme (PI)/11/PI/1152/IE/Frequency Combs Generated by Semiconductor Lasers for Metrology And Telecommunications/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/en
dc.relation.urihttps://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-5-7307
dc.rights© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreementen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectElectric field visualisationen
dc.subjectMulti-mode dynamicsen
dc.subjectOptical coherence tomography (OCT)en
dc.subjectFast frequency-swept laseren
dc.subjectWavelength sweepen
dc.titleExperimental electric field visualisation of multi-mode dynamics in a short cavity swept laser designed for OCT applicationsen
dc.typeArticle (peer-reviewed)en
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