Title :
Single-Carrier 800-Gb/s 32 RZ/QAM Coherent Transmission Over 225 km Employing a Novel RZ-CW Conversion Technique
Author :
Kasai, Keisuke ; Otuya, David Odeke ; Yoshida, Masato ; Hirooka, Toshihiko ; Nakazawa, Masataka
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
fDate :
3/1/2012 12:00:00 AM
Abstract :
We report the single-carrier 800-Gb/s coherent transmission of polarization-multiplexed 32 return-to-zero (RZ)/quadrature amplitude modulation signals at 10 Gsymbol/s × 8 optical time-division multiplexing (OTDM). Transmission over 225 km was achieved by adopting an RZ-continuous-wave conversion scheme in a coherent receiver, which made it possible to demodulate and demultiplex ultra high-speed multilevel OTDM signals with a high signal-to-noise ratio.
Keywords :
light coherence; optical communication; optical receivers; quadrature amplitude modulation; time division multiplexing; QAM coherent transmission; RZ-CW conversion technique; bit rate 800 Gbit/s; distance 225 km; optical time division multiplexing; signal to noise ratio; single carrier; Optical fibers; Optical filters; Optical polarization; Optical pulses; Quadrature amplitude modulation; Signal to noise ratio; Coherent receiver; coherent transmission; homodyne detection; optical time-division multiplexing (OTDM); quadrature amplitude modulation (QAM); time-division demultiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2180373
