DocumentCode
1148191
Title
Equalization in amplified WDM lightwave transmission systems
Author
Chraplyvy, A.R. ; Nagel, J.A. ; Tkach, R.W.
Author_Institution
AT&T Bell Lab., Holmdel, NJ, USA
Volume
4
Issue
8
fYear
1992
Firstpage
920
Lastpage
922
Abstract
The authors introduce simple techniques to solve gain equalization problems in amplified wavelength-multiplexed lightwave transmission systems. By adjusting the channel powers at the terminals in a prescribed way, either the output powers or the output signal-to-noise ratios of all the channels can be equalized. All adjustments can be made using information provided by system telemetry. No new equipment, upgrades, or adjustments are required at intermediate amplifier sites.<>
Keywords
frequency division multiplexing; optical links; amplified WDM lightwave transmission systems; amplified wavelength-multiplexed lightwave transmission systems; channel equalisation; channel powers; gain equalization problems; output powers; output signal-to-noise ratios; system telemetry; Erbium-doped fiber amplifier; Optical amplifiers; Optical attenuators; Optical filters; Optical noise; Optical pumping; Optical saturation; Optical transmitters; Stimulated emission; Wavelength division multiplexing;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.149909
Filename
149909
Link To Document