SEMICONDUCTOR WAVEGUIDES FOR NONLINEAR OPTICAL SIGNAL PROCESSING

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dc.contributor.advisorMurphy, Thomas E.en_US
dc.contributor.authorApiratikul, Paveenen_US
dc.contributor.departmentElectrical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2010-02-19T06:52:43Z
dc.date.available2010-02-19T06:52:43Z
dc.date.issued2009en_US
dc.description.abstractThis thesis investigates nonlinear effects in semiconductor waveguides for optical signal processing. Two semiconductor waveguides are studied : nanoporous silicon waveguide and GaAs/AlGaAs waveguide. First, nonlinear optical properties of nanoporous silicon waveguides including two-photon absorption, self-phase modulation and free-carrier effects are characterized and compared with similar measurements conducted on conventional silicon-on-insulator waveguides. Then, we experimentally demonstrate 10-Gb/s wavelength conversion using cross-amplitude modulation, cross-phase modulation and four-wave-mixing in GaAs/AlGaAs waveguides. Finally, we propose an ultrafast optical sampling system based on non-degenerate two-photon absorption in a GaAs photodiode. Using this technique, we successfully demonstrate a background-suppressed measurement of quasi 4-Tb/s eye diagrams.en_US
dc.identifier.urihttp://hdl.handle.net/1903/9917
dc.subject.pqcontrolledEngineering, Electronics and Electricalen_US
dc.subject.pquncontrolledNonlinear opticsen_US
dc.subject.pquncontrolledOptical samplingen_US
dc.subject.pquncontrolledOptical signal processingen_US
dc.subject.pquncontrolledSemiconductor wavguidesen_US
dc.subject.pquncontrolledWavelength conversionen_US
dc.titleSEMICONDUCTOR WAVEGUIDES FOR NONLINEAR OPTICAL SIGNAL PROCESSINGen_US
dc.typeDissertationen_US

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