Now showing items 10-15 of 15

  • High customer density PON with passive amplification through distributed pump for > 1:1000 tree split 

    Schrenk, Bernhard; Bauwelinck, Johan; Bonada Bo, Francesc; Lázaro Villa, José Antonio; Xing-Zhi, Qiu; Chanclou, Philippe; Prat, Josep (2011-07-01)
    Article
    Restricted access - publisher's policy
    A network architecture for tree-like passive optical networks (PONs) with high splitting ratios is proposed and experimentally demonstrated. Splits >1000 are shown to be feasible thanks to a noise-powered amplifier that ...
  • On an ONU for full-duplex 10.5 Gbps/lambda with shared delay interferometer for format conversion and chirp filtering 

    Schrenk, Bernhard; Stamatiadis, C.; Lazarou, I.; Maziotis, Alexandros; de Valicourt, Guilhem; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan; Avramopoulos, Hércules (2011)
    Conference report
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    Chirped IRZ downstream is used together with a delay interferometer and a RSOA at a low complexity ONU for full-duplex 10.5Gbps transmission on a single wavelength, supported by modulation format conversion and optical ...
  • Optical subsystems for next generation access networks 

    Lázaro Villa, José Antonio; Polo Querol, Víctor; Schrenk, Bernhard; Bonada Bo, Francesc; Cano Valadéz, Iván Nicolás; López Pastor, Eduardo Tommy; Kazmierski, Christophe; de Valicourt, Guilhem; Brenot, Romain; Bauwelinck, Johan; Xing-Zhi, Qiu; Ossieur, P.; Forzati, Marco; Rigole, Jean-Pierre; Monroy, I.T; Tangdiongga, E.; Morant, Maryland; Nicolau, L.; Teixeira, A.L.; Erasme, D.; Klonidis, Dimitrios; Tomkos, Ioannis; Prat Gomà, Josep Joan; Kouloumentas,, Christos; Avramopoulos, Hércules (2011)
    Conference report
    Restricted access - publisher's policy
    Recent optical technologies are providing higher flexibility to next generation access networks: on the one hand, providing progressive FTTx and specifically FTTH deployment, progressively shortening the copper access ...
  • SOA/REAM as Vector Modulator for QAM Upstream 

    Schrenk, Bernhard; Fàbrega Sánchez, Josep Maria; Kazmierski, Christophe; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan (2011)
    Conference report
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    Simultaneous encoding of information in the optical phase and amplitude for upstream transmission is demonstrated with an integrated SOA/REAM of small form factor. The crosstalk penalties between the QAM tributaries are ...
  • 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)
    Conference report
    Open Access
    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)
    Conference report
    Restricted access - publisher's policy
    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 ...