Exploració per tema "Chirp"

Ara es mostren els items 1-5 de 5

    • 1.25-3.125 Gb/s per user PON with RSOA as phase modulator for statistical wavelength ONU 

      Chu, Guangyong; Polo Querol, Víctor; Lerín de la Santísima Trinidad, Adolfo; Tabares Giraldo, Jeison; Cano Valadéz, Iván Nicolás; Prat Gomà, Josep Joan (2015-12-15)
      Article
      Accés obert
      We report a new scheme to support, cost efficiently, ultra-dense wavelength division multiplexing (UDWDM) for optical access networks. As validating experiment, we apply phase modulation of a reflective semiconductor optical ...

    • A comparison of different techniques for atmospheric artefact compensation in GBSAR differential acquisitions 

      Pipia, Luca; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan (IEEE, 2006)
      Text en actes de congrés
      Accés obert
      In this paper, a comparison of different techniques for compensating the atmospheric artifacts in Ground-Based SAR zero-baseline acquisitions at X-Band is presented. The way the fluctuation of atmospheric parameters like ...

    • Basics of broadband impedance spectroscopy measurements using periodic excitations 

      Sánchez Terrones, Benjamín; Vandersteen, Gerd; Bragós Bardia, Ramon; Schoukens, Johan (2012-08-21)
      Article
      Accés restringit per política de l'editorial
      Measuring the impedance frequency response of systems by means of frequency sweep electrical impedance spectroscopy (EIS) takes time. An alternative based on broadband signals enables the user to acquire simultaneous ...

    • Flat focusing mirrors 

      Staliunas, Kestutis; Cheng, Yu-Chiech; Kicas, Simonas; Trull Silvestre, José Francisco; Cojocaru, Crina; Peckus, Martynas; Vilaseca Alavedra, Ramon; Drazdys, Ramutis (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We present the flat focusing mirror - the dielectric mirrors capable to focus and image the narrow beams in reflections. The mirrors are flat, and transversally invariant, i.e. have no optical axis. We consider two different ...

    • Modulación directa de diodos láser de alta velocidad para sistemas de transmisión coherente 

      Lerín y de la Santísima Trinidad, Adolfo (Universitat Politècnica de Catalunya, 2012)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] The development of new optical networks is related with the capacity to arrive to cost effective solutions. For this reason is necessary a reduction in the number of devices into the network. In this way is possible ...