Browsing by Subject "Optoelectrònica"

Now showing items 1-20 of 86

    • 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

    • Caracterización espacial de un microdisplay AMOLED verde 

      Azor Morón, Juan Antonio; Millán Garcia-Varela, M. Sagrario (Red Iberoamericana de Óptica (RIAO), 2019)
      Conference lecture
      Restricted access - publisher's policy

    • 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 ...

    • Characterization of two coupled photonic crystal nanocavities 

      Paris Escarcelle, David (Universitat Politècnica de Catalunya, 2021-07-06)
      Bachelor thesis
      Open Access
      Covenantee:   Centre de Nanosciences et de Nanotechnologies (C2N)
      Nanolasers are a fundamental piece of all-optical integrated circuits and their several applications. In this work, the nanolaser is a system of two coupled nanocavities in a semiconductor photonic crystal, characterized ...

    • 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)
      Open Access
      [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). ...

    • Continuous-wave optical parametric oscillators and frequency conversion sources from the ultraviolet to the mid-infrared 

      Devi, Kavita (Universitat Politècnica de Catalunya, 2013-10-24)
      Doctoral thesis
      Open Access
      High-power, continuous-wave (cw) optical parametric oscillators (OPOs), from the ultraviolet (UV) and visible to the near- and mid-infrared (IR) wavelength range, are of interest for a variety of applications such as ...

    • Deep-sea deployment of the KM3NeT neutrino telescope detection units by self-unrolling 

      Aiello, S; Albert, Andreas; Alves Garre, Sergio; Ameli, F; Anassontzis, E.G.; André, Michel; Androulakis, Giorgos; Anghinolfi, Marco; Anguita, M.; Anton, Gisela; Ardid Ramírez, Miguel; Aublin, J.; Bagatelas, Christos (2020-11-19)
      Article
      Open Access
      KM3NeT is a research infrastructure being installed in the deep Mediterranean Sea. It will house a neutrino telescope comprising hundreds of networked moorings—detection units or strings—equipped with optical instrumentation ...

    • 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 

      Jordán Parra, Javier (Universitat Politècnica de Catalunya, 2019-09-09)
      Master thesis
      Restricted access - confidentiality agreement

    • 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 ...

    • Designing avionics for lasers & optoelectronics 

      Chau, H. K.; Boyle, I.; Nisbet-Jones, P.; Bridges, C. P. (Universitat Politècnica de Catalunya, 2022-04-29)
      Conference lecture
      Open Access
      Unlike imagery-based Earth observation (EO) which has become very widely and cheaply available, gravity sensing EO has not yet emerged from its fundamental science roots. The challenge therefore is to develop gravity sensing ...

    • 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 ...

    • 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, ...