Open Access1024 QAM (60 Gbit/s) single-carrier coherent optical transmission over 150 km
Author(s) -
Yoshiko Koizumi,
Kazushi Toyoda,
Masato Yoshida
Publication year - 2012
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.20.012508
Subject(s) - optics , polarization division multiplexing , quadrature amplitude modulation , gigabit , physics , qam , multiplexing , transmission (telecommunications) , bandwidth (computing) , optical communication , polarization (electrochemistry) , wavelength division multiplexing , telecommunications , computer science , bit error rate , wavelength , decoding methods , chemistry
We demonstrate a record QAM multiplicity of 1024 levels in a single-carrier coherent transmission. A frequency-domain equalization technique and a back-propagation method are adopted to compensate for distortions caused by hardware imperfections and fiber impairments, respectively. As a result, 60 Gbit/s polarization-multiplexed transmission over 150-km has been achieved at 3 Gsymbol/s within an optical bandwidth of only 4.05 GHz.