Show simple item record

dc.contributor.authorKuniyil, Hashir Puthiyapurayil
dc.contributor.authorDurak, Kadir
dc.date.accessioned2022-08-16T06:00:43Z
dc.date.available2022-08-16T06:00:43Z
dc.date.issued2021-08-15
dc.identifier.issn0030-4018en_US
dc.identifier.urihttp://hdl.handle.net/10679/7805
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0030401821002881
dc.description.abstractWe present the analysis of the down-conversion emission profile from a critically phase-matched type-I nonlinear crystal. The emission profile of the down-conversion modes shows asymmetry in cylindrical coordinate system due to the birefringent effects of the nonlinear crystal, i.e. pump walk-off. This effect leads to reduced collection of the pairs from the source to the single mode fiber, which limits the brightness as a function of the crystal length. We propose a method to improve the symmetry of the down-conversion modes by inserting a lens off-centered with respect to the optical axis. Our theoretical and experimental results show that the asymmetry of the system increases with the crystal length by L0.5, and the brightness is proportional to crystal length by L0.72 and L0.91 for uncorrected and corrected down conversion mode profiles, respectively. The proposed method allows more efficient use of photon pair sources in terms of brightness which is to be used in quantum optics applications.en_US
dc.description.sponsorshipTÜBİTAK
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relationinfo:turkey/grantAgreement/TUBITAK/118E156
dc.relation.ispartofOptics Communications
dc.rightsrestrictedAccess
dc.titleEfficient coupling of down-converted photon pairs into single mode fiberen_US
dc.typeArticleen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0002-9333-6309 & YÖK ID 283092) Durak, Kadir
dc.contributor.ozuauthorDurak, Kadir
dc.identifier.volume493en_US
dc.identifier.wosWOS:000651294700014
dc.identifier.doi10.1016/j.optcom.2021.127038en_US
dc.subject.keywordsNonlinear opticsen_US
dc.subject.keywordsQuantum communicationen_US
dc.subject.keywordsQuantum entanglementen_US
dc.subject.keywordsQuantum opticsen_US
dc.subject.keywordsSpontaneous parametric down-conversionen_US
dc.identifier.scopusSCOPUS:2-s2.0-85105559210
dc.contributor.ozugradstudentKuniyil, Hashir Puthiyapurayil
dc.relation.publicationcategoryArticle - International Refereed Journal - Institutional Academic Staff and PhD Student


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record


Share this page