Erbium-doped fiber amplifier cascade for multichannel coherent optical transmission

Author

Walker, Graham R. ; Walker, Nigel G. ; Steele, Roger C. ; Creaner, Martin J. ; Brain, Mike C.

Author_Institution

British Telecom Res. Labs., Ipswich, UK

Volume

9

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

182

Lastpage

193

Abstract

The requirements and practicalities of amplifier cascades for multichannel coherent transmission are discussed. A four-amplifier cascade which maintains an overall noise figure of less than 13 dB across a 20-nm optical bandwidth for total input powers up to -10 dBm is described. A potential capacity of 100 wavelength division multiplexing channels is demonstrated in a 300-km 622-Mb/s DPSK (differential phase shift keying) coherent transmission experiment

Keywords

erbium; fibre lasers; frequency division multiplexing; optical communication equipment; optical links; optical modulation; phase shift keying; 300 km; 622 Mbit/s; DPSK; Er:fibre amplifier cascade; WDM channel capacity; differential phase shift keying; four-amplifier cascade; input powers; multichannel coherent optical transmission; optical bandwidth; overall noise figure; wavelength division multiplexing channels; Erbium-doped fiber amplifier; Optical amplifiers; Optical attenuators; Optical crosstalk; Optical fiber amplifiers; Optical saturation; Repeaters; Semiconductor optical amplifiers; Stimulated emission; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.65876

Filename

65876