Title :
Long Haul transmission of four-dimensional 64SP-12QAM signal based on 16QAM constellation for longer distance at same spectral efficiency as PM-8QAM
Author :
Tatsuya Nakamura;Emmanuel Le Taillandier de Gabory;Hidemi Noguchi;Wakako Maeda;Jun´ichi Abe;Kiyoshi Fukuchi
Author_Institution :
Green Platform Research Laboratories, NEC Corporation, Kawasaki, Japan
Abstract :
We propose a new 4D coded modulation format, 64SP-12QAM, with same SE as PM-8QAM and straightforwardly-switchable with PM-16QAM. We experimentally demonstrated over 0.2 dB better sensitivity for 64SP-12QAM compared to PM-8QAM, enabling a transmission reach extension to 6,000 km at 6b/s/Hz.
Keywords :
"Digital signal processing","Sensitivity","Gain","Optical modulation","Optical sensors","Receivers"
Conference_Titel :
Optical Communication (ECOC), 2015 European Conference on
DOI :
10.1109/ECOC.2015.7341874
