Two-stage erbium-doped fibre amplifiers suitablefor use in long-haulsoliton systems
- 6 January 1994
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 30 (1) , 50-52
- https://doi.org/10.1049/el:19940023
Abstract
The performance of 980 nm-pumped, two stage erbium-doped fibre amplifiers incorporating mid-amplifier components is investigated experimentally to determine their suitability as in-line repeaters for long haul soliton systems. Amplifiers are considered with counter-propagating pump and signal, as are devices pumped through WDMs located in the middle of the amplifier. These devices are found to offer significantly better noise performance than single stage designs.Keywords
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