Ara es mostren els items 134-141 de 141

    • UDWDM-PON using low-cost coherent transceivers with limited tunability and heuristic DWA 

      Sales Zaragozá, Vicente; Segarra Mullerat, Josep; Polo Querol, Víctor; Velásquez Micolta, Juan Camilo; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016-08-01)
      Article
      Accés obert
      A new Passive Optical Network (PON) for access, making use of Ultra Dense Wavelength Division Multiplexing (UDWDM) by densely spacing channels at few GHz, and introducing the “wavelength-to-the-user” concept, is proposed. ...
    • Ultra-dense, transparent and resilient ring-tree access network using coupler-based remote nodes and homodyne transceivers 

      Fàbrega Sánchez, Josep Maria; Prat Gomà, Josep Joan (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Text en actes de congrés
      Accés obert
      We propose an Ultra-Dense Wavelength Division Multiplex Passive Optical Network (UD-WDM-PON) based on homodyne detection in a totally transparent ring-tree implementation. It is based on time switching phase diversity ...
    • Ultrafast wavelength jumping and wavelength adjustment with low current using monolithically integrated FML for long-reach UDWDM-PON 

      Chu, Guang Yong; Prat Gomà, Josep Joan (2016-12-07)
      Article
      Accés obert
      Ultrafast wavelength jumping at optical network units (ONUs) for an access network with frequency modulated lasers (FMLs) is demonstrated. This FML consists of an intracavity tunable phase section and filtering gain section. ...
    • Upstream performance improvement of low cost 10Gb/s ONUs with centralized OLT equalizer and FEC 

      Cano Valadéz, Iván Nicolás; Porto, S.; Naughton, A.; Ossieur, P.; Townsend, P.D.; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      An access optical network based on 10Gb/s DML and R-EAM-SOA as transmitters was experimentally tested with a centralized MLSE equalizer to compensate for the chirp, dispersion and RB. Several scenarios were studied and ...
    • Versatile metro-access network integrating FTTH, enterprises, IoT and 5G services 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Bandwidth demands are increasing with a high dynamic shape, driven by high definition video, cloudcomputing, business services, Internet of Things (IoT) and emerging next generation mobile networks like 5G. To support this ...
    • Wavelength conversion towards Rayleigh backscattering tolerant PONs via four-wave mixing in SOA-based ONUs 

      Schrenk, Bernhard; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan (2010)
      Text en actes de congrés
      Accés obert
      Wavelength shifting in PONs with downstream signal remodulation is presented, allowing upstream transmission over trees with 25km feeder and 1:32 split with penalties <2dB, originally Rayleigh backscattering limited. ...
    • Wavelength-tuneable remote node for enhanced resilience and optimization of WDM access networks 

      Lázaro Villa, José Antonio; Bonada Bo, Francesc; Schrenk, Bernhard; Costa, Liliana; Teixeira, Marco Antonio; Chatzi, Sotiria; Klonidis, Dimitrios; Tomkos, Ioannis; Prat Gomà, Josep Joan (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A remote node design with a wavelength tuneable optical add/drop element is presented and experimentally demonstrated for application in a resilient ring+tree access network architecture. The flexibility of the network ...
    • Xarxes FTTH de Nova Generació (Parts 1 i 2) 

      Prat Gomà, Josep Joan; Lázaro Villa, José Antonio; Segarra Mullerat, Josep (2009-12-15)
      Article
      Accés obert
      Les Xarxes Òptiques Passives (Passive Optical Networks-PONs) són el sistema d’accés per fibra òptica a la llar (Fiber To The Home-FTTH) més important per donar servei a les actuals i futures necessitats de transmissió ...