An optimization process for Raman-amplified long-span transmission

Author

Bouteiller, J.-C. ; Bromage, J. ; Thiele, H.-J. ; Nelson, L.E. ; Brar, K. ; Stulz, S.

Author_Institution

OFS Labs., Somerset, NJ, USA

Volume

16

Issue

1

fYear

2004

Firstpage

326

Lastpage

328

Abstract

We propose a decomposition of bidirectionally pumped Raman-amplified long spans into two independent amplifiers. This decomposition leads to a simple optimization process of the transmission. An example of a 10-Gb/s wavelength-division multiplexed system, consisting of 14200-km spans, is described. It presents the optimization of cogain and countergain levels, including constraints from double Rayleigh backscattering and repeaters. We also generalize this procedure to other span lengths.

Keywords

Raman lasers; optical fibre amplifiers; optical fibre communication; optical repeaters; optimisation; stimulated Raman scattering; wavelength division multiplexing; 10 Gbit/s; 14200 km; bidirectionally pumped Raman amplifier; cogain levels; countergain levels; dispersion compensation; double Rayleigh backscattering; fiber amplifier; long span transmission; optimization process; recirculating loop; repeater spacing; span decomposition; wavelength-division multiplexed system; Backscatter; High power amplifiers; Laboratories; Noise figure; Noise measurement; Optical amplifiers; Optical noise; Repeaters; Signal to noise ratio; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.819402

Filename

1256040