We investigated the reach increase obtained through non-linearity mitigation by means of transmission symbol rate optimization (SRO). We did this first theoretically and simulatively. We show that for PM-QPSK systems at full-C-band the reach increase may be substantial, on the order of 10%-25%, with optimum symbol rates on the order of 2-to-6 GBaud. We extended the investigation to PM-16QAM, where we found a qualitatively similar effect, although the potential reach increase is typically only about half that of PM-QPSK. We then set up an experiment to obtain confirmation of the theoretical and simulative predictions. We demonstrated a reach increase of 11% in a 19-channel, 128Gbit/s per channel, PM-QPSK experiment, when going from single-carrier per channel to multi-subcarrier (up to 16 subcarriers per channel) transmission. The experiment reached 14,100 km over PSCF, with 110 km spans and EDFA-only amplification. The results matched well the model predictions.

Theoretical and experimental assessment of nonlinearity mitigation through symbol rate optimization / Poggiolini, Pierluigi; Bosco, Gabriella; Carena, Andrea; Curri, Vittorio; Jiang, Yanchao; Bilal, SYED MUHAMMAD; Nespola, A.; Bertignono, Luca; Abrate, S.; Forghieri, F.. - ELETTRONICO. - (2015), pp. 31-34. ((Intervento presentato al convegno 2015 Tyrrhenian International Workshop on Digital Communications, TIWDC 2015 tenutosi a Pisa (Italy) nel 2015 [10.1109/TIWDC.2015.7323330].

Theoretical and experimental assessment of nonlinearity mitigation through symbol rate optimization

POGGIOLINI, PIERLUIGI;BOSCO, GABRIELLA;CARENA, Andrea;CURRI, Vittorio;JIANG, YANCHAO;BILAL, SYED MUHAMMAD;BERTIGNONO, LUCA;
2015

Abstract

We investigated the reach increase obtained through non-linearity mitigation by means of transmission symbol rate optimization (SRO). We did this first theoretically and simulatively. We show that for PM-QPSK systems at full-C-band the reach increase may be substantial, on the order of 10%-25%, with optimum symbol rates on the order of 2-to-6 GBaud. We extended the investigation to PM-16QAM, where we found a qualitatively similar effect, although the potential reach increase is typically only about half that of PM-QPSK. We then set up an experiment to obtain confirmation of the theoretical and simulative predictions. We demonstrated a reach increase of 11% in a 19-channel, 128Gbit/s per channel, PM-QPSK experiment, when going from single-carrier per channel to multi-subcarrier (up to 16 subcarriers per channel) transmission. The experiment reached 14,100 km over PSCF, with 110 km spans and EDFA-only amplification. The results matched well the model predictions.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2647394
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