Title :
Application of nonlinear MLSE combined with FFE in 40Gbit/s Pol-Mux RZ-DQPSK Optical Communication System
Author :
Lin, Mi ; Zhang, Jinnan ; Zhang, Yangan ; Zhang, Minglun ; Huang, Yongqing
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Compared to other digital equalizers, MLSE (maximum likelihood sequence estimator) equalizer seem to be the most promising candidate solution to mitigate impairments caused by CD, PMD and fiber´s nonlinearity. A novel MLSE equalizer technology combined with FFE based on nonlinear Volterra theory is investigated, which shows superior performance for joint compensation of all distortion effects in uncompensated 40Gbit/s Pol-Mux RZ-DQPSK optical transmission system. The receiver can achieve a long haul transmission with 280 km without any optical dispersion compensation.
Keywords :
Volterra equations; compensation; equalisers; feedforward; maximum likelihood sequence estimation; multiplexing; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical modulation; optical receivers; quadrature phase shift keying; FFE; Pol-Mux RZ-DQPSK; chromatic dispersion; digital equalizers; feed forward equalization; impairment mitigation; joint compensation; long haul transmission; maximum likelihood sequence estimator; nonlinear MLSE; nonlinear Volterra theory; polarisation mode dispersion; Abstracts; Optical fiber dispersion; Optical fibers; EDC; Equalization; FFE; MLSE; Volterra theory;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
