Open Access16QAM transmission with 52 bits/s/Hz spectral efficiency over transoceanic distance
Author(s) -
H. Zhang,
J.-X. Cai,
Hussam G. Batshon,
Carl Davidson,
Yu Sun,
M. Mazurczyk,
D. G. Foursa,
A.N. Pilipetskii,
G. Mohs,
Neal S. Bergano
Publication year - 2012
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.20.011688
Subject(s) - quadrature amplitude modulation , spectral efficiency , qam , optics , decoding methods , transmission (telecommunications) , computer science , forward error correction , modulation (music) , polarization division multiplexing , physics , telecommunications , bit error rate , channel (broadcasting) , wavelength division multiplexing , wavelength , acoustics
We transmit 160 x 100 G PDM RZ 16 QAM channels with 5.2 bits/s/Hz spectral efficiency over 6,860 km. There are more than 3 billion 16 QAM symbols, i.e., 12 billion bits, processed in total. Using coded modulation and iterative decoding between a MAP decoder and an LDPC based FEC all channels are decoded with no remaining errors.