Title :
Electronic Equalization of Multikilometer 10-Gb/s Multimode Fiber Links: Mode-Coupling Effects
Author :
Balemarthy, Kasyapa ; Polley, Arup ; Ralph, Stephen E.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA
Abstract :
This paper investigates the ability of electronic equalization to compensate for modal dispersion in the presence of mode coupling in multimode fibers (MMFs) at 10 Gb/s. Using a new time-domain experimental method, mode coupling is quantified in MMF. These results, together with a comprehensive link model, allow to determine the impact of mode coupling on the performance of MMF. The equalizer performance on links from 300 m to 8 km is quantified with and without modal coupling. It is shown that the mode-coupling effects are influenced by the specific index profile and increase the equalizer penalty by as much as 1 dBo for 1-km links and 2.3 dBo for 2-km links when using a standard model of fiber profiles at 1310 nm
Keywords :
equalisers; optical fibre LAN; optical fibre dispersion; 1 km; 10 Gbit/s; 1310 nm; 2 km; electronic equalization; equalizer penalty; fiber profiles; index profile; link model; local area network; modal dispersion compensation; mode coupling; mode-coupling effects; multimode fiber links; multimode fibers; time-domain experimental method; Equalizers; Intersymbol interference; Local area networks; Optical buffering; Optical coupling; Optical fiber LAN; Optical fiber communication; Optical fiber dispersion; Optical fibers; Time domain analysis; Decision feedback equalizers (DFEs); differential modal delay (DMD); equalization; mode coupling; multimode fiber (MMF); optical fiber communication; optical fiber local area network (LAN);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.884988
