The effect of strong inline filtering on the amplitude jitter in long optical systems

Author

Levy, Yuval ; Shtaif, Mark

Author_Institution

Dept. of Phys. Electron., Tel Aviv Univ.

Volume

24

Issue

8

fYear

2006

Firstpage

3097

Lastpage

3102

Abstract

The accumulation of amplitude jitter in ultralong-haul (ULH) systems deploying strong optical filters is studied. It is shown that in such systems that operate with nonsoliton waveforms, the selective inclusion of filters may lead to the enhancement or suppression of amplitude noise accumulation, depending on the filter´s positioning. This paper explains the improvement in performance that was demonstrated experimentally in a 60-span 12.5-Gb/s system with 12 periodically positioned bandlimited dynamic gain equalizers (DGE) (Optical Fiber Communication Conf., 2005). It is also shown that the same noise suppression as in (Optical Fiber Communication Conf., 2005) achieved by such a system can be achieved with as few as two strong filters if their positioning is properly optimized

Keywords

equalisers; jitter; optical communication equipment; optical fibre communication; optical filters; optical noise; 12.5 Gbit/s; amplitude jitter; amplitude noise accumulation; dynamic gain equalizers; inline filtering; noise suppression; ultralong-haul systems; Fiber nonlinear optics; Filtering; Noise level; Nonlinear optics; Optical fiber communication; Optical fiber filters; Optical filters; Optical noise; Optical solitons; Timing jitter; Fiber nonlinearities; optical communications;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2006.878285

Filename

1667829