Title :
Coherent 100/200 Gbps QPSK/16QAM-OFDM transmission over 1000 km of G.652 or G.655 fibre
Author :
Mengdi Song ; Pincemin, Erwan ; Grot, Didier ; Guillossou, Thierry ; Jaouen, Yves ; Le Bidan, Raphael
Author_Institution :
Orange Labs. Networks, Lannion, France
Abstract :
In this paper, we present a 10x100km transmission experiment of coherent 100 Gbps QPSK-OFDM and 200 Gbps 16QAM-OFDM over both uncompensated G.652 and G.655 fibre lines. 100 Gbps QPSK-OFDM shows error-free performance after 1000 km of transmission with a BER ~ 1×10-7 over G.652 fibre and ~ 1×10-5 over G.655 fibre, opening large OSNR margins for a field implementation. As expected, 200 Gbps 16QAM-OFDM is less efficient, but is still able to achieve 1000 km without error over G.652 fibre line, even if margin with respect to the soft-decision FEC threshold (fixed at BER ~ 2×10-2) is tiny. We also notice that G.652 fibre largely outperforms G.655 fibre at 100 Gbps and 200 Gbps whatever the modulation format considered, reinforcing the interest of G.652 fibre infrastructure for modern optical communication systems using high-order QAM.
Keywords :
OFDM modulation; optical fibre communication; optical modulation; quadrature amplitude modulation; quadrature phase shift keying; bit rate 100 Gbit/s; bit rate 200 Gbit/s; coherent 16QAM-OFDM transmission; coherent QPSK transmission; error-free performance; modern optical communication systems; modulation format; multiband orthogonal frequency division multiplexing technique; quadrature amplitude modulation; quaternary phase shift keying; soft-decision FEC threshold; uncompensated G.652 fibre lines; uncompensated G.655 fibre lines; Bit error rate; OFDM; Optical fibers; Optical noise; Phase shift keying; Signal to noise ratio; 16QAM; G.652/G.655 fibres; QPSK; coherent optical communication; multi-band OFDM;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193616
