Title :
Electrical Dispersion Compensation Equalizers in Optical Direct- and Coherent-Detection Systems
Author :
Katz, Gilad ; Sadot, Dan ; Tabrikian, Joseph
Author_Institution :
Electr. & Comput. Eng. Dept., Ben-Gurion Univ., Beer Sheva
Abstract :
We study the performances of several electrical dispersion compensation (EDC) equalizers in the presence of chromatic dispersion (CD) and polarization mode dispersion (PMD) for optical coherent and direct detection on-off keying systems. The EDCs that are analyzed include the decision-feedback equalizer, linear equalizer, and maximum-likelihood sequence estimator (MLSE). We present an inclusive quantitative analysis of the performance difference between the various techniques. The MLSE gives a good indication of the best possible performance
Keywords :
amplitude shift keying; decision feedback equalisers; maximum likelihood sequence estimation; optical fibre communication; optical fibre dispersion; optical modulation; EDC; MLSE; PMD; chromatic dispersion; decision-feedback equalizer; electrical dispersion compensation equalizers; linear equalizer; maximum-likelihood sequence estimator; on-off keying systems; optical coherent detection; performance analysis; polarization mode dispersion; quantitative analysis; Decision feedback equalizers; Intersymbol interference; Maximum likelihood estimation; Nonlinear optics; Optical fiber dispersion; Optical filters; Optical receivers; Performance analysis; Polarization mode dispersion; Stimulated emission; Decision-feedback equalizer (DFE); electrical dispersion compensation (EDC); electrical equalizer (EE); maximum-likelihood sequence estimator (MLSE); optical fiber communication system;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2006.884846
