Open Access107 Gb/s electronic predistortion transmitter using commercial FPGAs and D/A converters implementing real-time DSP for chromatic dispersion and SPM compensation
Author(s) -
R. Waegemans,
S. Herbst,
Ludwig Holbein,
Philip M. Watts,
Polina Bayvel,
C. Fürst,
Robert I. Killey
Publication year - 2009
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.17.008630
Subject(s) - digital signal processing , transmitter , predistortion , electronic engineering , modulation (music) , computer science , signal processing , optics , field programmable gate array , dispersion (optics) , transmission (telecommunications) , compensation (psychology) , converters , electrical engineering , telecommunications , physics , computer hardware , cmos , engineering , amplifier , voltage , psychology , channel (broadcasting) , acoustics , psychoanalysis
We present an experimental demonstration of simultaneous chromatic dispersion and self-phase modulation compensation at 10.7 Gb/s using real-time electronic digital signal processing. This was achieved using a pre-distorting transmitter based on commercially available field programmable gate arrays and 21.4 GS/s, 6-bit resolution digital-to-analog converters. The digital signal processing employed look-up tables stored in RAM. This resulted in the achievement of a BER of 10(-6) at an OSNR of 16 dB after transmission over a 450 km link of uncompensated standard single mode fiber with + 4 dBm launch power.