WDM upgrading of an installed submarine optical amplifier system

Author

Murakami, M. ; Matsuda, T. ; Maeda, H. ; Tada, Y. ; Imai, T.

Author_Institution

NTT Network Service Syst. Labs., Kanagawa, Japan

Volume

19

Issue

11

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

1665

Lastpage

1674

Abstract

This paper describes the WDM upgrading of a submarine optical amplifier system installed for single-channel transmission in commercial use. The key technologies used include 10-Gb/s high-speed forward error correction, preemphasis to overcome the optical passband-width constraint, optimized signal pulse format that leads to partial return-to-zero (PRZ) signaling, and dispersion compensation to suppress the degradation caused by fiber nonlinearity and dispersion. It also reports field experimental results on upgraded system performance. The results confirm that simply upgrading the terminal equipment allows the transmission capacity of a submersed line consisting of submarine repeaters and cables to be flexibly increased from 10 Gb/s to 40 Gb/s per fiber pair

Keywords

error correction; optical cables; optical fibre amplifiers; optical fibre dispersion; optical repeaters; submarine cables; wavelength division multiplexing; 10 to 40 Gbit/s; WDM upgrading; commercial use; degradation; dispersion compensation; fiber dispersion; fiber nonlinearity; high-speed forward error correction; installed submarine optical amplifier system; optical passband-width constraint; optimized signal pulse format; partial return-to-zero signaling; preemphasis; single-channel transmission; submarine cables; submarine repeaters; submersed line; terminal equipment; transmission capacity; High speed optical techniques; Marine technology; Optical amplifiers; Optical fiber cables; Optical fiber devices; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission; Underwater vehicles; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.964066

Filename

964066