Multiwavelength propagation in lightwave systems with strongly inverted fiber amplifiers

Author

Goldstein, E.L. ; Eskildsen, L. ; Lin, C. ; Tench, R.E.

Author_Institution

Bellcore, Red Bank, NJ, USA

Volume

6

Issue

2

fYear

1994

Firstpage

266

Lastpage

269

Abstract

Unlike single-channel systems, which favor saturated operation, multiwavelength erbium-doped fiber amplifier cascades offer substantial performance advantages when operated with minimal saturation at very strong inversion levels. This is due to ground-state absorption which, in partially inverted amplifiers, yields strong wavelength-dependent attenuation and thus large inter-channel power spread. In a strongly inverted six-amplifier chain, the inter-channel power spread per amplifier is suppressed by about an order of magnitude compared with the same system operated well into gain-compression.<>

Keywords

fibre lasers; optical communication equipment; optical fibre theory; optical links; erbium doped fiber amplifier; gain compression; ground state absorption; interchannel power spread; inversion levels; inverted fiber amplifiers; lightwave systems; multiwavelength propagation; saturation; wavelength dependent attenuation; Erbium-doped fiber amplifier; Optical amplifiers; Optical attenuators; Optical fiber amplifiers; Optical filters; Optical propagation; Optical pumping; Optical refraction; Power amplifiers; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.275446

Filename

275446