• 25Gbps quasicoherent receiver for beyond NG-PON2 access networks 

      Altabas, Jose Antonio; Suhr, Lau F.; Silva Valdecasa, Guillermo; Lázaro Villa, José Antonio; Garces, Ignacio; Jensen, J.B.; Clausen, Anders T. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A 25Gbps quasicoherent receiver with simple DSP has been experimentally validated for 25G access networks. It exhibits a sensitivity of -24. 7dBm after 20km SSMF and duobinary decoding and provides a power budget of 25. 7dB.
    • 6.25Gb/s differential duobinary transmission in 2GHz BW limited direct phase modulated DFB for udWDM-PONs 

      Cano Valadéz, Iván Nicolás; Lerín de la Santísima Trinidad, Adolfo; Presi, Marco; Polo Querol, Víctor; Ciaramella, Ernesto; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A differential duobinary codification is proposed for directly phase modulating a 2GHz BW equalized DFB laser. The method was tested with homodyne coherent detection achieving 6.25Gb/s bitrate transmission with -38.5dBm ...
    • Multilevel direct DFB phase modulation in 6.25 GHz spectrally spaced UDWDM PONs 

      Cano Valadez, Iván Nicolás; Velásquez Micolta, Juan Camilo; Polo Querol, Víctor; Prat Gomà, Josep Joan (2016)
      Presentació
      Accés restringit per política de l'editorial
      Direct phase modulation of DFB is demonstrated with DPSK, DQPSK and Duobinary modulation formats and detected with an intradyne receiver based on a 120-degree hybrid. The system is tested in a 50 km fibre link with 6.25 ...