Exploració per tema "Integrated optics"
Ara es mostren els items 1-20 de 20
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Anisotropy-induced photonic bound states in the continuum
(Nature, 2017-03-20)
Article
Accés obertBound states in the continuum (BICs) are radiationless localized states embedded in the part of the parameter space that otherwise corresponds to radiative modes. Many decades after their original prediction1, 2, 3 and ... -
Caracterització, modelat i aplicacions dels moduladors de polarització birefringet de LINbO3
(Universitat Politècnica de Catalunya, 2008-06)
Projecte/Treball Final de Carrera
Accés obertL'objectiu principal d'aquest projecte és caracteritzar el modulador de polarització electroòptic fabricat amb tecnologia d'òptica integrada. Concretament, es definiran els paràmetres principals del modulador com són el ... -
Classical and quantum applications of optical four wave mixing in an integrated silicon nitride platform
(Universitat Politècnica de Catalunya, 2014-12-19)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: University of Colorado Boulder[ANGLÈS] Integrated photonics provide a very versatile platform for nonlinear optics experiments, due to the tight field confinement that high index contrast structures offer and their great degree of tunability. Two ... -
Design of a silicon photonic multimode interference coupler
(Universitat Politècnica de Catalunya / Technische Universität Berlin, 2012-12-10)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: Technische Universität Berlin[ANGLÈS] RSoft Design is a software used by researchers, system integrators, manufacturers and service providers, thanks to its tools which provide a wide range of applications, from the design of photonic components to ... -
Designing Graphene based Silicon Devices
(Universitat Politècnica de Catalunya, 2016-02)
Treball Final de Grau
Accés obertThe objective of the project is the design of new Graphene - Silicon devices for optical communications in future low energy consumption optical networks. For this design it will be used commercial software and MIT designing ... -
Disseny de dos circuits opto-electrònics desplaçadors de la longitud d'ona per xarxes d'accés per fibra òptica (FTTH)
(Universitat Politècnica de Catalunya, 2012-11-21)
Projecte/Treball Final de Carrera
Accés obert[ANGLÈS] In this work it is presented the design and simulation of two different opto-electronic circuits to perform a wavelength shifting at optical network units (ONU) of Fiber To The Home (FTTH) networks. This significantly ... -
Estudio teórico de una unión Y activa para aplicaciones en dispositivos de óptica integrada
(1988)
Text en actes de congrés
Accés obert -
Fabricació de dispositius fotònics integrats
(Universitat Politècnica de Catalunya, 2017-06)
Treball Final de Grau
Accés obertThis project has focused on the fabrication and characterization of hydrogenated amorphous silicon (a-Si:H) thin films to fabricate photonic devices on them, which can be applied to make revolutionary applications in the ... -
Generation of polarization entangled photon pairs in Bragg reflection waveguides
(Universitat Politècnica de Catalunya, 2012-09-06)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] We report the observation of polarization entangled photon pairs generated by means of type-II spontaneous parametric down-conversion (SPDC) within an AlGaAs Bragg reflection waveguide (BRW). Even though SPDC in ... -
Graphene-based multimode interference device design for optical switching applications
(Universitat Politècnica de Catalunya, 2018-08-27)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Vrije Universiteit Brussel / Universiteit GentThe relatively small size and low energy consuming switching potential offered by graphene-based electro-optic and electro-absorption switches has attracted a lot of attention in the photonics community recently and there ... -
Guided to leaky mode transition in uniaxial optical slab waveguides
(1993-10)
Article
Accés obertThe guided-to-leaky hybrid mode transition in slab optical waveguides made on uniaxial crystals such as LiNbO/sub 3/, or LiTaO/sub 3/, is analyzed. Two different guided-to-leaky transitions have been identified, namely the ... -
Guided-to-leaky mode transition in uniaxial optical slab waveguides
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1993-10-01)
Article
Accés obertThe guided-to-leaky hybrid mode transition in slab optical waveguides made on uniaxial crystals such as LiNbO3, or LiTaO 3, is analyzed. Two different guided-to-leaky transitions have been identified, namely the ordinary ... -
Leaky modes in multilayer uniaxial optical waveguides
(OPTICAL SOC AMER, 1990-04-01)
Article
Accés obertThe propagation characteristics of the leaky modes in planar anisotropic waveguides with a multilayer structure have been investigated by means of a compact rigorous formalism. The leakage losses and leaky transition angle ... -
Leaky modes in multilayer uniaxial optical waveguides
(1990-04)
Article
Accés obertThe propagation characteristics of the leaky modes in planar anisotropic waveguides with a multilayer structure have been investigated by means of a compact rigorous formalism. The leakage losses and leaky transition angle ... -
Metodos de caracterizacion de moduladores electro-opticos
(Universitat Politècnica de Catalunya, 2011-06-30)
Treball Final de Grau
Accés obert -
Optical characterisation of the whispering gallery modes in Nd3+ doped glass active microspheres
(Universitat Politècnica de Catalunya, 2011-07-15)
Projecte Final de Màster Oficial
Accés obertEnglish: The project was focused on the optical characterization of Nd3+ doped glass active microspheres of sizes of few micrometers. Using micro photoluminescence (time resolved and continuous wave) and micro transmission ... -
Phase Diffusion effects in InP semiconductor lasers
(Universitat Politècnica de Catalunya, 2022-09-06)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Reglas de escala para bifurcaciones en guías ópticas
(1990)
Text en actes de congrés
Accés obert -
Transition from Dirac points to exceptional points in anisotropic waveguides
(American Physical Society, 2019-10-04)
Article
Accés obertWe uncover the existence of Dirac and exceptional points in waveguides made of anisotropic materials, and study the transition between them. Dirac points in the dispersion diagram appear at propagation directions where the ... -
Universal diagrams for te waves guided by thin films bounded by saturable nonlinear media
(1993-03)
Article
Accés obertIt is shown that universal V-b diagrams provide a powerful tool when analyzing the stationary waveguiding properties of the TE waves guided by a thin film bounded by a saturable nonlinear substrate or cladding. For a wide ...