Electrical dispersion compensation equalizers in optical long-haul coherent-detection system

Author

Katz, G. ; Sadot, D. ; Tabrikian, J.

Author_Institution

Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel

Volume

2

fYear

2005

fDate

3-7 July 2005

Firstpage

80

Abstract

We study the performances of several electrical dispersion compensation (EDC) equalizers in the presence of chromatic dispersion (CD) and polarisation mode dispersion (PMD) for optical coherent detection OOK system. The EDCs that are analyzed include decision feedback equalizer (DFE), linear equalizer (LE), 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. We also present the performances of the same EDCs for direct detection OOK system. It is shown that in coherent detection the performances of both the DFE and LE are effectively the same, whereas in direct detection the DFE is preferable.

Keywords

amplitude shift keying; decision feedback equalisers; maximum likelihood estimation; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical signal detection; MLSE; OOK; chromatic dispersion; decision feedback equalizer; electrical dispersion compensation equalizers; linear equalizer; maximum likelihood sequence estimator; optical long-haul coherent-detection system; polarisation mode dispersion; quantitative analysis; Decision feedback equalizers; Intersymbol interference; Maximum likelihood estimation; Optical feedback; Optical fiber dispersion; Optical filters; Optical receivers; Performance analysis; Polarization mode dispersion; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2005, Proceedings of 2005 7th International Conference

Print_ISBN

0-7803-9236-1

Type

conf

DOI

10.1109/ICTON.2005.1506103

Filename

1506103