Show simple item record

dc.contributor.authorThyagarajan, K
dc.contributor.authorVaya, Minu
dc.contributor.authorArun Kumar
dc.date.accessioned2005-06-19T07:11:18Z
dc.date.accessioned2019-02-09T08:24:58Z
dc.date.available2005-06-19T07:11:18Z
dc.date.available2019-02-09T08:24:58Z
dc.date.issued1997
dc.identifier.citationOptics communications, 140, 316-322en
dc.identifier.urihttp://localhost:8080/xmlui/handle/12345678/372
dc.description.abstractIn this paper we use the coupled mode analysis to study nonlinear phase shifts of the fundamental beam caused by cascaded second order nonlinear effects in the Quasi Phase Matched Cerenkov (QPMC) configuration in waveguides. Under the no-pump depletion approximation which is valid for low conversion efficiencies, we obtain the nonlinear phase shift as a function of length of interaction and grating period. It is observed that the nonlinear phase shift of the fundamental beam can be maximized by choosing a grating period for which the phase matched second harmonic radiation mode is radiated parallel to the film-substrate interface, i.e., for zero Cerenkov angle. Although the phase shifts are smaller than in the case of all guided geometry, QPM Cerenkov configuration is expected to have greater tolerance towards various waveguide parameters and the fundamental wavelength.en
dc.format.extent178236 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.subjectQPMCen
dc.subjectefficienciesen
dc.subjectnonlinear phaseen
dc.subjectharmonic radiationen
dc.subjecttoleranceen
dc.subjectwavelengthen
dc.titleCoupled mode analysis to study cascading in the QPM Cerenkov regime in waveguidesen
dc.typeArticleen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record