Title :
Electronic Dispersion Compensation
Author :
Bülow, Henning ; Buchali, Fred ; Klekamp, Axel
Author_Institution :
Alcatel-Lucent Res. & Innovation, Stuttgart
Abstract :
The performance of different electronic equalization and processing schemes for 40- and 10-Gb/s optical transmission over single-mode fiber (SMF) are discussed, from the point of their ability to compensate chromatic dispersion (CD) and polarization mode dispersion (PMD). In addition, the impact of fiber nonlinearity and modulation format on equalization is also investigated. The main objective of this paper is to present an overview and a comparison of the performances rather than a detailed explanation of the principles of the different equalization schemes. The equalizers which will be covered are analog equalizer (feedforward and decision feedback type), maximum likelihood sequence estimator (MLSE), electronic precompensation, coherent/intradyne detection with digital signal processing (DSP) equalization, DSP-based optical orthogonal frequency division multiplexing (OFDM), and turbo equalization.
Keywords :
OFDM modulation; differential phase shift keying; equalisers; maximum likelihood sequence estimation; optical feedback; optical fibre communication; optical fibre dispersion; optical information processing; optical receivers; optical transmitters; quadrature phase shift keying; bit rate 10 Gbit/s; bit rate 40 Gbit/s; chromatic dispersion; decision feedback type; digital signal processing equalization; electronic dispersion compensation; electronic equalization; electronic precompensation; fiber nonlinearity; intradyne detection; maximum likelihood sequence estimator; modulation format; optical orthogonal frequency division multiplexing; optical transmission; polarization mode dispersion; single-mode fiber; turbo equalization; Decision feedback equalizers; Digital signal processing; Maximum likelihood detection; Maximum likelihood estimation; OFDM; Optical feedback; Optical fiber polarization; Optical modulation; Optical signal processing; Polarization mode dispersion; Electronic signal processing; modulation; optical communication; optical receivers; optical transmitters;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.913066
