Investigation of FEC improvement in a dispersion limited direct modulated 2.5 Gb/s transmission experiment

Author

Mobilon, Eduardo ; de Barros, M.R.X. ; Bordonalli, Aldáario C.

Author_Institution

CPqD-Telecom & IT Solutions, Campinas, Brazil

Volume

2

fYear

2003

fDate

20-23 Sept. 2003

Firstpage

943

Abstract

The use of forward error correction (FEC) coding to reduce power penalties caused by dispersion induced intersymbol interference in direct modulated optical systems is experimentally investigated in this work. For a fiber span length of up to 300 km, the system performance was observed for coded and uncoded direct modulation of a semiconductor laser. The FEC technique improved the system performance, as a result of the correction of the dispersion induced bit errors, in such a way that it made possible for a 2.5 Gb/s direct modulated transmission experiment to reach a former nonviable 300 km fiber span with a "better than back-to-back" performance, at 10^-10 BER.

Keywords

compensation; error statistics; forward error correction; intersymbol interference; optical fibre communication; optical fibre dispersion; optical modulation; wavelength division multiplexing; 2.5 Gbit/s; 300 km; BER; DWDM; FEC coding; chromatic dispersion; coded direct modulation; direct modulated optical systems; dispersion compensation; dispersion induced bit errors; dispersion induced intersymbol interference; dispersion limited direct modulated transmission; fiber span length; forward error correction coding; semiconductor laser; uncoded direct modulation; Fiber nonlinear optics; Forward error correction; Interference; Nonlinear optics; Optical buffering; Optical fiber dispersion; Optical fiber networks; Optical modulation; Optical refraction; Semiconductor lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International

Print_ISBN

0-7803-7824-5

Type

conf

DOI

10.1109/IMOC.2003.1242708

Filename

1242708