title: Experimental investigation of SPM in long-haul direct-detection OFDM systems.
abstract: We experimentally investigate the effect of self-phase modulation on direct-detection orthogonal frequency division multiplexed (OFDM) transmission at 11.1 Gb/s over 960km and 1600km uncompensated standard single-mode fiber links. We show that for long-haul systems, the penalties due to nonlinear distortion in OFDM systems are comparable to those in links employing electronic predistortion.
authors.affiliation: Optical Networks Group, Department of Electronic and Electrical Engineering, University College London, UK WC1E 7JE. y.benlachtar@ee.ucl.ac.uk
authors.forename: Yannis
authors.initials: Y
authors.lastname: Benlachtar
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Gavioli
authors.forename: Vitaly
authors.initials: V
authors.lastname: Mikhailov
authors.forename: Robert I
authors.initials: RI
authors.lastname: Killey