Volterra-Based Reconfigurable Nonlinear Equalizer for Coherent OFDM

Volterra-Based Reconfigurable Nonlinear Equalizer for Coherent OFDM

A reconfigurable nonlinear equalizer (RNLE) based on inverse Volterra series transfer function is proposed for dual-polarization (DP) and multiband coherent optical orthogonal frequency-division multiplexing (OFDM) signals. It is shown that the RNLE outperforms by 2 dB the linear equalization in a 2...

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Veröffentlicht in:IEEE photonics technology letters 2014-07, Vol.26 (14), p.1383-1386
Hauptverfasser: Giacoumidis, Elias, Aldaya, Ivan, Jarajreh, Mutsam A., Tsokanos, Athanasios, Son Thai Le, Farjady, Farsheed, Jaouen, Yves, Ellis, Andrew D., Doran, Nick J.
Format: Artikel
Sprache:eng
Schlagworte:
Coherence
Engineering Sciences
Equalization
Equalizers
Integrated optics
Inverse
Modulation
Nonlinear optics
Nonlinearity
OFDM
Optical polarization
Optical receivers
Optics
Orthogonal Frequency Division Multiplexing
Photonic
Tolerances
Transfer functions
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Zusammenfassung:A reconfigurable nonlinear equalizer (RNLE) based on inverse Volterra series transfer function is proposed for dual-polarization (DP) and multiband coherent optical orthogonal frequency-division multiplexing (OFDM) signals. It is shown that the RNLE outperforms by 2 dB the linear equalization in a 260-Gb/s DP-OFDM system at 1500 km. The RNLE improves the tolerance to inter/intraband nonlinearities, being independent on polarization tributaries, modulation format, signal bit rate, subcarrier number, and distance.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2014.2321434