Open AccessFour-wave mixing for clock recovery of phase modulated optical OFDM superchannel
Author(s) -
Mark Power,
Wei Jia,
R.P. Webb,
Robert Manning,
Fatima C. Garcia Gunning
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.007007
Subject(s) - optics , phase shift keying , four wave mixing , clock recovery , phase modulation , photodiode , beat (acoustics) , orthogonal frequency division multiplexing , modulation (music) , physics , phase noise , mixing (physics) , optical communication , electronic engineering , computer science , bit error rate , nonlinear optics , clock signal , telecommunications , laser , engineering , electronic circuit , channel (broadcasting) , acoustics , quantum mechanics
We simulate and experimentally demonstrate a novel all-optical clock recovery technique for a BPSK OFDM superchannel. Four-wave mixing in SOAs is used to strip the modulation from the superchannel sub-carriers, two of which are filtered and beat together in a photodiode to recover the clock.