Harmonic frequency locking and tuning of comb frequency spacing through optical injection

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dc.contributor.authorShortiss, Kevinen
dc.contributor.authorLingnau, Benjaminen
dc.contributor.authorDubois, Fabienen
dc.contributor.authorKelleher, Bryanen
dc.contributor.authorPeters, Frank H.en
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderDeutsche Forschungsgemeinschaften
dc.date.accessioned2024-07-31T15:12:47Z
dc.date.available2024-07-31T15:12:47Z
dc.date.issued2019en
dc.description.abstractWe show, both experimentally and theoretically, that a slave laser injected with an optical frequency comb can undergo two distinct locking mechanisms, both of which decrease the output optical comb’s frequency spacing. We report that, for certain detuning and relative injection strengths, slave laser relaxation oscillations can become undamped and lock to rational frequencies of the optical comb spacing, creating extra comb tones by nonlinear dynamics of the injected laser. We also study the frequency locking of the slave laser at detunings in between the injected comb lines, which add the slave laser’s frequency to the comb. Our results demonstrate the effect of the 𝛼 parameter and stability of the locked states and indicate how the frequency of the relaxation oscillations affect both of these locking mechanisms. These optical locking mechanisms can be applied to regenerate or multiply optical combs.en
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (Grant no. 404943123)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationShortiss, K., Lingnau, B., Dubois, F., Kelleher, B. and Peters, F.H. (2019) ‘Harmonic frequency locking and tuning of comb frequency spacing through optical injection’, Optics Express, 27(25), pp. 36976-36989. doi: 10.1364/OE.27.036976en
dc.identifier.endpage36989en
dc.identifier.issued5en
dc.identifier.journaltitleOptics Expressen
dc.identifier.startpage36976en
dc.identifier.urihttps://hdl.handle.net/10468/16174
dc.identifier.volume27en
dc.language.isoenen
dc.publisherOptica Publishing Groupen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Investigator Programme/13/IA/1960/IE/Injection locking within Photonic Integrated Circuits supporting high spectral density optical communications/en
dc.rights© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://www.osapublishing.org/library/license_v1.cfm#VOR-OA)en
dc.rights.urihttps://opg.optica.org/library/license_v1.cfmen
dc.subjectHarmonic frequency lockingen
dc.subjectOptical frequency comben
dc.subjectRelaxation oscillationsen
dc.titleHarmonic frequency locking and tuning of comb frequency spacing through optical injectionen
dc.typeArticle (peer-reviewed)en
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