Title :
Fractionally-spaced statistical equalizer for fiber nonlinearity mitigation in digital coherent optical systems
Author :
Koike-Akino, Toshiaki ; Parsons, Kieran ; Kojima, Keisuke ; Chunjie Duan ; Yoshida, Takafumi ; Sugihara, Tomoyuki ; Mizuochi, Takashi
Author_Institution :
Mitsubishi Electr. Res. Labs. (MERL), Cambridge, MA, USA
Abstract :
We propose a fractionally-spaced equalizer with trained second-order statistics to deal with nonlinear impairment in coherent optical communications. The proposed 3-tap equalizer improves Q-factor by more than 2 dB for long-haul transmissions of 5,230 km.
Keywords :
Q-factor; higher order statistics; light coherence; optical fibre communication; 3-tap equalizer; Q-factor; coherent optical communications; digital coherent optical systems; distance 5230 km; fiber nonlinearity mitigation; fractionally-spaced statistical equalizer; long-haul transmissions; nonlinear impairment; trained second-order statistics; Dispersion; Equalizers; Nonlinear optics; Optical distortion; Optical signal processing; Phase shift keying; Q-factor;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2012 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4673-0262-3
