First field demonstration of optical submarine cable system using LD-pumped Er-doped optical fibre amplifier

Author

Edagawa, N. ; Yamoto, S. ; Namihira, Yoshinori ; Mochizuki, K. ; Wakabayashi, H.

Author_Institution

KDD Meguro R&D Labs., Tokyo, Japan

Volume

25

Issue

19

fYear

1989

Firstpage

1278

Lastpage

1280

Abstract

The authors report on the first field demonstration of an optical submarine cable system using an in-line Er-doped optical fibre amplifier pumped by a 1.47 mu m laser diode. The experiment was performed at an ocean depth of 3000 m. With a maximum optical repeater gain of 20 dB, 1.2 Gbit/s intensity-modulated optical signals were transmitted stably during and after installation and also during recovery of the system. Furthermore, the effectiveness of an automatic-gain-control (AGC) scheme proposed for optical amplifiers was confirmed in a practical environment.

Keywords

amplifiers; automatic gain control; digital communication systems; error statistics; optical cables; optical fibres; optical links; repeaters; submarine cables; 1.2 Gbit/s; 1.47 micron; 20 dB; 23.5 km; 3000 m; AGC; BER performance; Er-doped optical fibre amplifier; LD-pumped; automatic-gain-control; bit error rate; field demonstration; intensity-modulated optical signals; laser diode pumping; maximum optical repeater gain; ocean depth; optical submarine cable system;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19890856

Filename

46178