Analysis of distributed erbium-doped fiber amplifiers with fiber background loss
- 1 July 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (7) , 625-628
- https://doi.org/10.1109/68.87934
Abstract
An accurate model for erbium-doped fiber amplifiers with fiber background loss applicable to the unsaturated gain regime is presented. Exact analytical solutions are derived for the output pump power, gain, and amplified spontaneous noise as a function of input pump power in the cases of unidirectional or bidirectional pumping. An exact relation is also derived between the pump threshold and the pump required for fiber transparency. Such expressions are particularly useful to model distributed fiber amplifiers and to determine the optimal fiber parameters corresponding to a given pumping scheme. As an example, the analytical solutions are used to study the pump power requirement for distributed fiber amplifiers unidirectionally pumped at 1.48 mu m, and to determine an optimum Er/sup 3+/ absorption coefficient.Keywords
This publication has 7 references indexed in Scilit:
- Characterization and modeling of amplified spontaneous emission in unsaturated erbium-doped fiber amplifiersIEEE Photonics Technology Letters, 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
- Spectral dependence of gain and noise in erbium-doped fiber amplifiersIEEE Photonics Technology Letters, 1990
- Modeling of gain in erbium-doped fiber amplifiersIEEE Photonics Technology Letters, 1990
- Long span fiber amplifiersApplied Optics, 1990
- Gain saturation effects in high-speed, multichannel erbium-doped fiber amplifiers at lambda =1.53 mu mJournal of Lightwave Technology, 1989