Title :
40Gb/s Pol-Mux RZ-DQPSK Transmission with Electric Dispersion Compensation
Author :
Lin, Mi ; Zhang, Jinnan ; Zhang, Yangan ; Zhang, Minglun ; Huang, Yongqing
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Polarization-multiplexed DQPSK signals were implemented with high-speed and precise optical polarization compensation. Electronic chromatic dispersion compensation employing maximum-likelihood sequence estimation (MLSE) receivers have been previously proposed to combat CD and PMD in the presence of ASE noise. In this paper we analyze the performance of a novel MLSE digital equalizer technology which is combined with FFE receivers in optical 40Gbit/s systems for reducing the CD and PMD. We investigate equalization over buried fibers having CD up to 3200ps/nm, PMD up to 45ps. This equals a distance beyond 200 km and thus increases the uncompensated transmission distance in applications like metro networks.
Keywords :
light polarisation; maximum likelihood estimation; optical fibre networks; quadrature phase shift keying; ASE noise; FFE receivers; MLSE digital equalizer technology; Pol-Mux RZ-DQPSK transmission; bit rate 40 Gbit/s; electric dispersion compensation; fiber-optic communication systems; maximum-likelihood sequence estimation; optical polarization compensation; polarization-multiplexed DQPSK signals; Bit error rate; Equalizers; Maximum likelihood estimation; Optical fibers; Optical noise; Receivers; Signal to noise ratio; DOPSK; EDC; FFE; MLSE; Polarization-multiplexed;
Conference_Titel :
Information Technology and Applications (IFITA), 2010 International Forum on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-7621-3
Electronic_ISBN :
978-1-4244-7622-0
DOI :
10.1109/IFITA.2010.226
