Noise performance evaluation of distributed erbium-doped fiber amplifiers with bidirectional pumping at 1.48 mu m
- 1 January 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 4 (1) , 52-55
- https://doi.org/10.1109/68.124874
Abstract
An accurate model for unsaturated fiber amplifiers with fiber background loss is used to determine optimal parameters for distributed amplification in erbium-doped fibers. Pump power at 1.48 mu m and erbium-doping levels required for transparency are studied for both unidirectional and bidirectional pumping schemes. An optimal erbium absorption coefficient which minimizes the required pump power is found. However, this case corresponds to the highest amplifier noise figure. The authors conclude that, in practice, distributed erbium-doped fiber amplifiers are not significantly advantageous compared to 980-nm-pumped lumped amplifier schemes.Keywords
This publication has 8 references indexed in Scilit:
- Dynamic gain compensation in saturated erbium-doped fiber amplifiersIEEE Photonics Technology Letters, 1991
- Modeling erbium-doped fiber amplifiersJournal of Lightwave Technology, 1991
- Characterization and modeling of amplified spontaneous emission in unsaturated erbium-doped fiber amplifiersIEEE Photonics Technology Letters, 1991
- Erbium-doped fiber amplifiers for new generations of optical communication systemsOptics and Photonics News, 1991
- Performance of a distributed erbium-doped dispersion-shifted fiber amplifierJournal of Lightwave Technology, 1991
- Gain-distribution measurements along an ultralong erbium-doped fiber amplifier using optical-time-domain reflectometryOptics Letters, 1990
- Signal-to-noise considerations in fiber links with periodic or distributed optical amplificationOptics Letters, 1990
- Theory and implementation of a Raman active fiber delay lineJournal of Lightwave Technology, 1986