Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3886
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dc.contributor.authorNeşeli, Berkay-
dc.contributor.authorBor, Emre-
dc.contributor.authorKurt, Hamza-
dc.contributor.authorTurduev, Mirbek-
dc.date.accessioned2020-10-22T16:46:30Z-
dc.date.available2020-10-22T16:46:30Z-
dc.date.issued2020-05
dc.identifier.citationNeşeli, B., Bor, E., Kurt, H. and Turduev, M. (2020). Rainbow trapping in a tapered photonic crystal waveguide and its application in wavelength demultiplexing effect. JOSA B, 37(5), 1249-1256.en_US
dc.identifier.issn7403224
dc.identifier.urihttps://hdl.handle.net/20.500.11851/3886-
dc.identifier.urihttps://www.osapublishing.org/josab/abstract.cfm?uri=josab-37-5-1249-
dc.description.abstractIn this paper, we present the numerical and experimental demonstration of a wavelength demultiplexer (WDM) based on the photonic crystal (PC), in which the waveguide has a tapered width. Owing to the tapered waveguide, propagating light can be slowed down and be trapped by a local mode gap effect at certain distances from the entrance of the waveguide. The corresponding effect leads to the localization of four different wavelengths at different points inside the waveguide. The drop-channels are introduced at these specified locations to separate selected wavelengths. Here, we utilized an optimization algorithm to enhance the coupling efficiencies of the introduced drop-channels. The presented WDM PC separates the wavelengths of 22.29, 21.63, 20.80, and 19.87 mm (13.46, 13.87, 14.42, and 15.10 GHz, respectively) into different drop-channels with coupling efficiencies at around 80%. Experimental verifications of the numerically presented results are realized at the microwave frequency regime where the coupling efficiencies of each drop-channel are measured as around 75%. The designed WDM PC structure is all dielectric, compact, and efficient, and it exhibits low cross talk between drop-channels. Experimental measurements show a rainbow-trapping phenomenon and verify the simulation results of wavelength demultiplexing design with the margin of error between 0.8% and 1% frequency shifts in peak transmission values. © 2020 Optical Society of Americaen_US
dc.language.isoenen_US
dc.publisherOSA - The Optical Societyen_US
dc.relation.ispartofJournal of the Optical Society of America B: Optical Physicsen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSlow light en_US
dc.subject photonic crystals en_US
dc.subject waveguidesen_US
dc.titleRainbow Trapping in a Tapered Photonic Crystal Waveguide and Its Application in Wavelength Demultiplexing Effecten_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Electrical and Electronics Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümütr_TR
dc.identifier.volume37
dc.identifier.issue5
dc.identifier.startpage1249
dc.identifier.endpage1256
dc.relation.tubitakinfo:eu-repo/grantAgreement/TÜBİTAK/MFAG/116F182en_US
dc.authorid0000-0002-0749-4205-
dc.identifier.wosWOS:000565310200001en_US
dc.identifier.scopus2-s2.0-85083821780en_US
dc.institutionauthorKurt, Hamza-
dc.identifier.doi10.1364/JOSAB.388374-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.relation.otherTurkish Academy of ScienceTurkish Academy of Sciencesen_US
dc.identifier.scopusqualityQ2-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.5. Department of Electrical and Electronics Engineering-
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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