Open AccessNonlinear filter based decision feedback equalizer for optical communication systems
Author(s) -
Xiaoqi Han,
ChingYu Cheng
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.008712
Subject(s) - computer science , equalizer , optical communication , filter (signal processing) , nonlinear system , adaptive equalizer , quadrature amplitude modulation , optical filter , qam , optics , communications system , electronic engineering , telecommunications , bit error rate , physics , decoding methods , engineering , computer vision , channel (broadcasting) , quantum mechanics
Nonlinear impairments in optical communication system have become a major concern of optical engineers. In this paper, we demonstrate that utilizing a nonlinear filter based Decision Feedback Equalizer (DFE) with error detection capability can deliver a better performance compared with the conventional linear filter based DFE. The proposed algorithms are tested in simulation using a coherent 100 Gb/sec 16-QAM optical communication system in a legacy optical network setting.