Multiwavelength propagation in lightwave systems with strongly inverted fiber amplifiers
- 1 February 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 6 (2) , 266-269
- https://doi.org/10.1109/68.275446
Abstract
Unlike single-channel systems, which favor saturated operation, multiwavelength erbium-doped fiber amplifier cascades offer substantial performance advantages when operated with minimal saturation at very strong inversion levels. This is due to ground-state absorption which, in partially inverted amplifiers, yields strong wavelength-dependent attenuation and thus large inter-channel power spread. In a strongly inverted six-amplifier chain, the inter-channel power spread per amplifier is suppressed by about an order of magnitude compared with the same system operated well into gain-compression.Keywords
This publication has 3 references indexed in Scilit:
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- Dependence of performance of saturated in-line erbium-doped fiber amplifiers on pump wavelength around 1480 nmIEEE Photonics Technology Letters, 1993
- Modeling erbium-doped fiber amplifiersJournal of Lightwave Technology, 1991