Effects of concentration on the performance of erbium-doped fiber amplifiers
- 1 January 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 15 (1) , 112-120
- https://doi.org/10.1109/50.552118
Abstract
The dependence of erbium-doped fiber amplifier (EDFA) performance on the erbium ion concentration is studied experimentally and theoretically. The quantum efficiency of the amplifier is found to he strongly dependent on the erbium ion concentration, the signal wavelength, and the relative propagation direction of the pump and signal beams. This dependence is fully explained by the presence of an upconversion mechanism between ions residing in pairs or larger clusters and suggests that other sources of amplifier performance degradation (back-ground loss, excited state absorption, homogenous upconversion) are negligible. The experimental data show that in the present EDFA designs with over 80% quantum/conversion efficiency, the aluminum co-doped fibers with erbium ion concentration less than 20/spl times/10/sup 24/ m/sup -3/ (900 molar ppm Er/sup 3+/) are most suitable.Keywords
This publication has 32 references indexed in Scilit:
- Up-conversion and excited state energy transfer in rare-earth doped materialsPublished by Springer Nature ,2007
- Applications of rare-earth-doped fibresPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Effects of concentration and clusters in EDFAsPublished by Optica Publishing Group ,1995
- Modelling of extremely high concentration erbium-doped silica waveguidesElectronics Letters, 1993
- Erbium-doped ion-exchanged waveguide lasers in BK-7 glassIEEE Photonics Technology Letters, 1992
- Parameters of excitation energy transfer from the4/11/2level of the Er3+ion in (Y1–xErx)3Al5O12crystalsSoviet Journal of Quantum Electronics, 1992
- Absorption and emission cross section of Er/sup 3+/ doped silica fibersIEEE Journal of Quantum Electronics, 1991
- High-power erbium-doped-fiber amplifiers operating in the saturated regimeIEEE Photonics Technology Letters, 1991
- Erbium-doped glasses for fiber amplifiers at 1500 nmJournal of Lightwave Technology, 1991
- Loss Analysis of Single-Mode Fiber SplicesBell System Technical Journal, 1977