Title :
Coherent Optical 25.8-Gb/s OFDM Transmission Over 4160-km SSMF
Author :
Jansen, Sander L. ; Morita, Itsuro ; Schenk, Tim C W ; Takeda, Noriyuki ; Tanaka, Hideaki
Author_Institution :
KDDI R&D Lab., Saitama
Abstract :
We discuss coherent optical orthogonal frequency division multiplexing (CO-OFDM) as a suitable modulation technique for long-haul transmission systems. Several design and implementation aspects of a CO-OFDM system are reviewed, but we especially focus on phase noise compensation. As conventional CO-OFDM transmission systems are very sensitive to laser phase noise a novel method to compensate for phase noise is introduced. With the help of this phase noise compensation method we show continuously detectable OFDM transmission at 25.8 Gb/s data rate (20 Gb/s after coding) over 4160-km SSMF without dispersion compensation.
Keywords :
OFDM modulation; optical fibre dispersion; phase noise; bit rate 25.8 Gbit/s; chromatic dispersion compensation; coherent optical orthogonal frequency division multiplexing; distance 4160 km; fiber-optic transmission systems; long-haul transmission; phase noise compensation; Chromatic dispersion compensation; fiber-optic transmission systems; long-haul transmission; orthogonal frequency division multiplexing (OFDM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.911888
