Open AccessCo-operation of digital nonlinear equalizers and soft-decision LDPC FEC in nonlinear transmission
Author(s) -
Takahito Tanimura,
Shunri Oda,
Takeshi Hoshida,
Yuriko Aoki,
Zhenning Tao,
Jens C. Rasmussen
Publication year - 2013
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.21.032393
Subject(s) - forward error correction , low density parity check code , nonlinear system , phase shift keying , transmission (telecommunications) , computer science , optics , keying , polarization (electrochemistry) , electronic engineering , physics , bit error rate , telecommunications , decoding methods , engineering , chemistry , quantum mechanics
We experimentally and numerically investigated the characteristics of 128 Gb/s dual polarization - quadrature phase shift keying signals received with two types of nonlinear equalizers (NLEs) followed by soft-decision (SD) low-density parity-check (LDPC) forward error correction (FEC). Successful co-operation among SD-FEC and NLEs over various nonlinear transmissions were demonstrated by optimization of parameters for NLEs.