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dc.contributor.authorVysloukh, Victor A.
dc.contributor.authorKartashov, Yaroslav
dc.date.accessioned2014-12-12T13:38:13Z
dc.date.available2014-12-12T13:38:13Z
dc.date.created2014-10-15
dc.date.issued2014-10-15
dc.identifier.citationVysloukh, V.A.; Kartashov, Y. Resonant mode conversion in the waveguides with unbroken and broken PT symmetry. "Optics letters", 15 Octubre 2014, vol. 39, núm. 20, p. 5933-5936.
dc.identifier.issn0146-9592
dc.identifier.urihttp://hdl.handle.net/2117/25016
dc.description.abstractWe study resonant mode conversion in parity time (PT)-symmetric multimode waveguides, where symmetry breaking manifests itself in the sequential destabilization (i.e., the appearance of complex eigenvalues) of the pairs of adjacent guided modes. We show that efficient mode conversion is possible even in the presence of the resonant longitudinal modulation of the complex refractive index. The distinguishing feature of the resonant mode conversion in the PT-symmetric structure is a drastic growth of the width of the resonance curve when the gain/losses coefficient approaches a critical value, at which symmetry breaking occurs. We found that in the system with broken symmetry, the resonant coupling between the exponentially growing mode and the stable higher-order one effectively stabilizes dynamically coupled pairs of modes and remarkably diminishes the average rate of the total power growth.
dc.format.extent4 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Física::Física de partícules
dc.subject.lcshFotonics
dc.subject.otherCOUPLERS
dc.subject.otherSOLITONS
dc.titleResonant mode conversion in the waveguides with unbroken and broken PT symmetry
dc.typeArticle
dc.subject.lemacFotònica
dc.identifier.doi10.1364/OL.39.005933
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-20-5933&origin=search
dc.rights.accessOpen Access
local.identifier.drac15342183
dc.description.versionPostprint (author’s final draft)
local.citation.authorVysloukh, V.A.; Kartashov, Y.
local.citation.publicationNameOptics letters
local.citation.volume39
local.citation.number20
local.citation.startingPage5933
local.citation.endingPage5936


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