Now showing items 1-20 of 59

  • Analysis of a field conjugation adaptive array for coherent free-space optical links 

    Belmonte Molina, Aniceto; Kahn, Joseph M. (2010)
    Conference report
    Open Access
  • Atmospheric aerosol measurement with a network of advanced lidar instruments 

    Comerón Tejero, Adolfo; Sicard, Michaël; Rocadenbosch Burillo, Francisco; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; García Vizcaíno, David (2013-03-11)
    Article
    Restricted access - publisher's policy
    A European network of atmosphere sensors uses multi-wavelength elastic-Raman lidar instruments in its infrastructure.
  • Blind adaptation of channel-matched receivers in free-space coherent laser communication 

    Belmonte Molina, Aniceto; Kahn, Joseph M. (The Optical Society (OSA), 2012)
    Conference report
    Restricted access - publisher's policy
    Channel-matched adaptive coherent receivers are implemented using aperture arrays. As an alternative to training-based channel estimation, we analyze the performance of sequential techniques for blind adaptation of ...
  • Capacity of coherent free-space optical links ¿using diversity-combining techniques: errata 

    Belmonte Molina, Aniceto; Kahn, Joseph M. (2010-08-16)
    Article
    Open Access
  • Characterisation of the Hamamatsu photomultipliers for the KM3NeT Neutrino Telescope 

    Aiello, S; Ameli, F; André, Michel; Anghinolfi, Marco; Anton, G.; Ardid Ramírez, Miguel; Avgitas, T.; Bertin, V.; Bormuth, R.; Bouwhuis, M.C.; Puricelli, Stefano; Cherubini, Silvio; Coniglione, R.; Mannheim, Karl; Morganti, Michele; Pellegrino, Carlo; Piattelli, P.; Real, Del; Santangelo, A; Sharma, Aniruddh; Trovato, A.; Zaborov, D.; Zúñiga Román, Juan (2018-05-01)
    Article
    Open Access
    The Hamamatsu R12199-02 3-inch photomultiplier tube is the photodetector chosen for the first phase of the KM3NeT neutrino telescope. About 7000 photomultipliers have been characterised for dark count rate, timing spread ...
  • Characterization of a push-pull membrane mirror for an astronomical adaptive-optics system 

    Barrera Verdejo, María (Universitat Politècnica de Catalunya, 2012-09-10)
    Master thesis
    Open Access
    [ANGLÈS] Oaxaca Project has the aim to provide the San Pedro Mártir telescope of Adaptive Optics images. Among the elements used in the setup for such aim, there is a Push-Pull deformable membrane mirror. Its introduction ...
  • Circuits de conversió optoelectrònica per a un bus de control per fibra òptica 

    Manuel Pastor, Sergi (Universitat Politècnica de Catalunya, 2007-07-13)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Este proyecto forma parte de un sistema Lidar en el cual tenemos la necesidad de enviar unas señales binarias de control para ajustar los valores de ganancia y offset de unos receptores. En un sistema de estas características ...
  • Closed-form expressions for the optimization of high speed electro-optical modulators 

    Ibarra Fusté, Jose Antonio; Santos Blanco, M. Concepción (2013-07)
    Article
    Restricted access - publisher's policy
    Compact closed-form mathematical expressions for the propagation parameters (characteristic impedance, effective permittivity and attenuation) of coplanar waveguides (CPW) are presented. The formulas take into account ...
  • Concepción, simulación y optimización de dispositivos desplazadores de longitud de onda reflexivos para redes de acceso por fibra óptica (FTTH) 

    Parra Figarella, Mario Simón (Universitat Politècnica de Catalunya, 2013-03-01)
    Master thesis (pre-Bologna period)
    120 months embargo
    [ANGLÊS] This project presents the design, simulation and optimization of reflective wavelength shifters circuits, with the idea of being implemented in the ONU of subscribers within a passive fiber access network (FTTH). ...
  • Design and comparison of flipped active inductors with high quality factors 

    Saberkari, Alireza; Ziabakhsh, Soheil; Martínez García, Herminio; Alarcón Cot, Eduardo José (Institution of Electrical Engineers, 2014-05-19)
    Article
    Restricted access - publisher's policy
    A new design based on the flipped-structure for RF active inductors is presented. The conventional flipped-active inductor (FAI) composed of only two transistors is considered as a starting structure. However, it suffers ...
  • Design and construction of an operative tabletop lidar imager 

    Jordan Parra, Javier (Universitat Politècnica de Catalunya, 2019-09-09)
    Master thesis
    Restricted access - confidentiality agreement
  • Designing Graphene based Silicon Devices 

    Herranz Salazar, Francisco (Universitat Politècnica de Catalunya, 2016-02)
    Bachelor thesis
    Open Access
    The 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 ...
  • Design of an integrated coherent receiver with polarization diversity 

    Villalba Jiménez, Isabel María (Universitat Politècnica de Catalunya, 2014-11-17)
    Master thesis
    Open Access
    [ANGLÈS] In this master thesis it has been designed a multimode interference device with great features, great bandwidth and strongly insensitive to hardware impairments. The device implements a 120º hybrid which may be ...
  • Detection of graphene motion through light-matter interactions 

    Schädler, Kevin Gerd (Universitat Politècnica de Catalunya, 2012-09-06)
    Master thesis
    Open Access
    [ANGLÈS] In this thesis, we study both experimentally and theoretically the optical detection of the motion of graphene membranes based on fluorescence quenching of the emitters close to graphene. Fluorescence quenching ...
  • Digital coherent receiver for orbital angular momentum demultiplexing 

    Belmonte Molina, Aniceto; Pérez Torres, Juan (2013-01-15)
    Article
    Open Access
    We put forward a type of receiver for coherent detection of the photon orbital angular momentum (OAM). A coherent array receiver, consisting of multiple subapertures, with each subaperture coupled to a single-mode fiber, ...
  • Dispositius electrònics i fotònics : fonaments 

    Prat Viñas, Lluís; Calderer Cardona, Josep (Edicions UPC, 2001)
    Book
    Restricted access to the UPC academic community
    L'obra presenta els fonaments físics i tecnològics en què es basen els dispositius electrònics actuals (propietats elèctriques i òptiques dels semiconductors, junció PN, contactes metall-semiconductor i tecnologia de ...
  • Dispositivos electrónicos y fotónicos : fundamentos 

    Prat Viñas, Lluís; Calderer Cardona, Josep (Edicions UPC, 2003)
    Book
    Restricted access to the UPC academic community
    Los autores son profesores del Departamento de Ingeniería Electrónica de la UPC. Durante más de dos décadas, se han dedicado a la docencia de los dispositivos semiconductores a los estudiantes de Ingeniería Electrónica y ...
  • Dispositivos electrónicos y fotónicos : fundamentos 

    Prat Viñas, Lluís; Calderer Cardona, Josep (Edicions UPC, 2006)
    Book
    Restricted access to the UPC academic community
    En este libro se presentan los fundamentos físicos y tecnológicos de los dispositivos electrónicos actuales (propiedades eléctricas y ópticas de los semiconductores, unión PN, contactos metal-semiconductor y tecnología de ...
  • Disseny de dos circuits opto-electrònics desplaçadors de la longitud d'ona per xarxes d'accés per fibra òptica (FTTH) 

    Solé Sánchez, Víctor (Universitat Politècnica de Catalunya, 2012-11-21)
    Master thesis (pre-Bologna period)
    120 months embargo
    [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 ...
  • Effect of molecular organization on the image histograms of polarization SHG microscopy 

    Psilodimitrakopoulos, Sotiris; Amat Roldán, Iván; Loza Álvarez, Pablo; Artigas García, David (2012)
    Article
    Open Access
    Based on its polarization dependency, second harmonic generation (PSHG) microscopy has been proven capable to structurally characterize molecular architectures in different biological samples. By exploiting this polarization ...