Volterra-based reconfigurable nonlinear equalizer for coherent OFDM

Giacoumidis, Elias; Aldaya, Ivan; Jarajreh, Mutsam A.; Tsokanos, Athanasios; Le, Son T.; Farjady, Farsheed; Jaouën, Yves; Ellis, Andrew D. and Doran, Nick J. Volterra-based reconfigurable nonlinear equalizer for coherent OFDM. IEEE Photonics Technology Letters, 26 (14), pp. 1383-1386.


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.

Publication DOI: https://doi.org/10.1109/LPT.2014.2321434
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
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Additional Information: Funding: European Commission (FP7 ICT Projects DISCUS - Grant 318137 - and FOX-C - Grant 318415); EPSRC (Grant EP/J017582/1-UNLOC); and the Royal Society under Grant WM120035-TEST.


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