Now showing items 1-3 of 3

  • Analysis of back-propagation and RF pilot-tone based nonlinearity compensation for a 9x224Gb/s POLMUX-16QAM system 

    Díaz Souto, Alberto; Napoli, Antonio; Adhikari, Susmita; Maalej, Zied; Lobato Polo, Adriana P.; Kuschnerov, Maxim; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    We investigate the joint implementation of back-propagation and RF-pilot tone for fiber nonlinear compensation in POLMUX-16QAM and show that the nonlinear tolerance is drastically improved when compared to OFDM system
  • Comparison of single carrier and OFDM with back-propagation and RF pilot tone for a 9x224Gb/s POLMUX-16QAM system 

    Prat Gomà, Josep Joan; Díaz Souto, Alberto; Maalej, Z.; Lobato, A.; Adhikari, Sukumar Das; Timmers, E.; Napoli, Antonio; Kuschnerov, M.; Spinnler, B. (2011)
    Conference report
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    The performance of single carrier and OFDM is compared when nonlinear compensation at the DSP receiver is employed. We show that the joint use of RF-pilot and back-propagation adds further improvement to OFDM performance.
  • Square-root strategy: a novel method to linearize an optical communication system with electronic equalizers 

    Prat Gomà, Josep Joan; Napoli, Antonio; Gene Bernaus, Joan M.; Omella Cáncer, Mireia Esther; Poggiolini, P.; Curri, Vittorio (2005)
    Conference report
    Restricted access - publisher's policy
    We demonstrate a nonlinear function after the photodetector that linearizes dispersion-limited IM-DD systems, enhancing the performance of linear electronic equalization. Results showed a clear improvement in terms of ...