Now showing items 1-20 of 538

    • 1Gbps full-duplex 5GHz frequency slots uDWDM flexible metro/access networks based on VCSEL-RSOA transceiver 

      Altabas, Jose Antonio; Izquierdo, David; Lázaro Villa, José Antonio; Garces, Ignacio (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      1Gbps full-duplex 5GHz frequency slot is proposed for uDWDM Flexible Metro-Access Networks. The costeffective ONU transceiver is based on VCSEL as LO for coherent reception and seed for phase-modulated RSOA, providing ...
    • A 461 nm laser system for an ultracold strontium quantum gas experiment 

      Estarellas Perales, Antonio (Universitat Politècnica de Catalunya, 2021-09-09)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      In recent years, ultra-cold atomic gases have emerged as a novel platform for the study of quantum many-body systems. Exploiting these gases, it is possible to synthesize quantum matter of highly controllable properties ...
    • A QoS-Aware Dynamic Bandwidth Allocation algorithm for passive optical networks with non-zero laser tuning time 

      Zehri, Mohammad Habib; Haastrup, Adebanjo; Rincón Rivera, David; Piney da Silva, José Ramón; Sallent Ribes, Sebastián; Bazzi, Ali (2021-05-10)
      Article
      Open Access
      The deployment of new 5G services and future demands for 6G make it necessary to increase the performance of access networks. This challenge has prompted the development of new standardization proposals for Passive Optical ...
    • A two dimensional KTiOPO4 photonic crystal grown using a macroporous silicon template 

      Peña Revellez, Alexandra; Finizio, Sergio Di; Todorov Trifonov, Trifon; Carvajal, Joan Josep; Aguiló Díaz, Magdalena; Pallarès Marzal, Josep; Rodríguez Martínez, Ángel; Alcubilla González, Ramón; Marsal Garví, Lluís Francesc; Diaz, Francesc; Martorell Pena, Jordi (2006-09)
      Article
      Restricted access - publisher's policy
      2D KTiOPO4 photonic crystals are fabricated using a silicon membrane of air holes as a template. Columns of KTiOPO4 are grown by liquid-phase epitaxy from a substrate into such air holes. The crystallographic orientation ...
    • Activitats del Grup de Recerca en Dinàmica no lineal, Òptica no lineal i Làsers (DONLL)" 

      Vilaseca Alavedra, Ramon (Campus de Terrassa de la UPC, 2013-06-13)
      Conference report
      Open Access
    • Adaptive optics multiphoton microscopy 

      Artal, P; Gualda Manzano, Emilio José; Bueno García, Juan Manuel (2010)
      Conference report
      Open Access
      We have developed an adaptive optics multiphoton microscope. The multiphoton imaging system combines an ultrafast high-power laser, a scanning unit, a motorized Z-scan device and a photon-counting detector. The adaptive ...
    • Advanced Delivery System for 5G-enabled Photonic Networks 

      Gómez Gonzalvo, Alberto (Universitat Politècnica de Catalunya, 2014-05-21)
      Bachelor thesis
      Open Access
      Covenantee:   Danmarks tekniske universitet
      [ANGLÈS] The advent of mobile devices such as smartphones or tablets demanding high capacity services drives a solution for next generation wireless networks. Wireless and optical networks are converging to increase the ...
    • Agenda estratégica de investigación e innovación de la fotónica en España 

      Royo Royo, Santiago (Fotonica21, 2022-11-30)
      Book
      Open Access
      La Agenda Estratégica de Innovación es una de las herramientas clave de que dispone la comunidad relacionada con la Fotónica de dar a conocer sus necesidades y actividades. Indica cuáles son las prioridades que la industria ...
    • Al2O3/TiO2 inverse opals from electrosprayed self-assembled templates 

      Coll, Arnau; Bermejo Broto, Sandra; Hernández, David; Castañer Muñoz, Luis María (2018-01-19)
      Article
      Open Access
      The fabrication of high optical quality inverse opals is challenging, requiring large size, three-dimensional ordered layers of high dielectric constant ratio. In this article, alumina/TiO2–air inverse opals with a 98.2% ...
    • Algebraic bright and vortex solitons in defocusing media 

      Borovkova, Olga V.; Kartashov, Yaroslav V.; Malomed, Boris A.; Torner Sabata, Lluís (2011-08-15)
      Article
      Restricted access - publisher's policy
      We demonstrate that spatially inhomogeneous defocusing nonlinear landscapes with the nonlinearity coefficient growing toward the periphery as (1+|¿|¿) support one- and two-dimensional fundamental and higher-order bright ...
    • Alkali-atom absorption spectroscopy and magnetometry using functionalized MEMs vapor cells 

      Rae, Rachel (Universitat Politècnica de Catalunya, 2023-09-08)
      Master thesis
      Open Access
      Optically pumped magnetometers (OPMs) have gained attention in recent years for their medical application in magnetoencephalography(MEG), a neuro-imaging technique that maps brain activity by measuring the magnetic fields ...
    • An ultra-compact particle size analyser using a CMOS image sensor and machine learning 

      Hussain, Rubaiya; Martinez Cordero, Pedro Antonio; Coll, T.; Pruneri, Valerio (2020-12)
      Article
      Open Access
      Light scattering is a fundamental property that can be exploited to create essential devices such as particle analysers. The most common particle size analyser relies on measuring the angle-dependent diffracted light from ...
    • Analysis of photonic band gaps in two-dimensional photonic crystals with rods covered by a thin interfacial layer 

      Todorov Trifonov, Trifon; Marsal, L F; Rodríguez Martínez, Ángel; Pallarès Marzal, Josep; Alcubilla González, Ramón (2004-11)
      Article
      Restricted access - publisher's policy
      We investigate different aspects of the absolute photonic band gap (PBG) formation in two-dimensional photonic structures consisting of rods covered with a thin dielectric film. Specifically, triangular and honeycomb ...
    • Analysis of the accommodation response with machine learning 

      Tuñón Grossi, Beatriz (Universitat Politècnica de Catalunya, 2022-07-21)
      Master thesis
      Restricted access - confidentiality agreement
    • Analysis, design and development of a photonics-based radar 

      Mas Zapater, Lidia (Universitat Politècnica de Catalunya, 2022-07-05)
      Bachelor thesis
      Open Access
      The purpose of this project is to analyze, design and develop a type of Microware Photonic Radar. Microwave photonics provides a solution to overcoming the limitations of electrical devices in conventional radar systems ...
    • Anderson cross-localization 

      Stützer, Simon; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Tünnermann, A.; Nolte, Stefan; Lewenstein, Maciej; Torner Sabata, Lluís; Szameit, Alexander (2012)
      Article
      Restricted access - publisher's policy
      We report Anderson localization in two-dimensional optical waveguide arrays with disorder in waveguide separation introduced along one axis of the array, in an uncorrelated fashion for each waveguide row. We show that the ...
    • Anderson localization in Bragg-guiding arrays with negative defects 

      Lobanov, Valery E.; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Torner Sabata, Lluís (2012-10)
      Article
      Restricted access - publisher's policy
      We show that Anderson localization is possible in waveguide arrays with periodically spaced defect waveguides having a lower refractive index. Such localization is mediated by Bragg reflection, and it takes place even if ...
    • Anderson localization of light with topological dislocations 

      Lobanov, Valery E.; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Torner Sabata, Lluís (2013-11-01)
      Article
      Open Access
      We predict Anderson localization of light with nested screw topological dislocations propagating in disordered two-dimensional arrays of hollow waveguides illuminated by vortex beams. The phenomenon manifests itself in the ...
    • Angular surface slitons in sectorial hexagonal arrays 

      Szameit, Alexander; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Heinrich, Matthias; Dreisow, Felix; Pertsch, T; Nolte, Stefan; Tünnermann, A; Lederer, F; Torner Sabata, Lluís (2008-07)
      Article
      Restricted access - publisher's policy
      We report on the experimental observation of corner surface solitons localized at the edges joining planar interfaces of hexagonal waveguide array with uniform nonlinear medium. The face angle between these interfaces has ...
    • Aplicació de la fotònica en l’oftalmologia 

      Boqué Estil·les, Glòria (Universitat Politècnica de Catalunya, 2021-02-01)
      Bachelor thesis
      Restricted access - author's decision
      La detecció a temps de les malalties oculars és essencial per poder actuar i evitar la pèrdua de visió. Algunes d’aquestes patologies estan associades a la pèrdua de fotoreceptors de la retina. És per aquest motiu que la ...