Transmission of many WDM channels through a cascade of EDFA's in long-distance links and ring networks
- 1 May 1995
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 13 (5) , 802-816
- https://doi.org/10.1109/50.387797
Abstract
We analyze the transmission of many wavelength-division-multiplexed (WDM) channels through a cascade of erbium-doped fiber amplifiers (EDFA) in both long-distance links and ring-based networks. For a megameter long-distance system, optimal operating conditions are found for achieving a high signal-to-noise ratio (SNR) per channel with as small an SNR differential as possible between 20 WDM channels spaced 0.5 nm apart. Critical issues addressed in this paper include: (a) the non-uniformity of the EDFA gain with wavelength: (b) the link loss between amplifiers; (c) the small-signal gain per amplifier; and (d) the input signal power.Keywords
This publication has 41 references indexed in Scilit:
- IM-DD four-channel WDM transmission experiment over 1500 km employing 22 cascaded optical amplifiersElectronics Letters, 1993
- Analysis of effective power budget in optical bus and star networks using erbium-doped fiber amplifiersJournal of Lightwave Technology, 1993
- D-fibre filter for erbium gain spectrum flatteningElectronics Letters, 1992
- Narrow-band optical channel-dropping filterJournal of Lightwave Technology, 1992
- Noise reduction in long-haul lightwave all-amplifier systemsJournal of Lightwave Technology, 1992
- Dense wavelength division multiplexing networks: principles and applicationsIEEE Journal on Selected Areas in Communications, 1990
- Crosstalk analysis and filter optimization of single- and double-cavity Fabry-Perot filtersIEEE Journal on Selected Areas in Communications, 1990
- Limitations on lightwave communications imposed by optical-fiber nonlinearitiesJournal of Lightwave Technology, 1990
- Lightwave systems with optical amplifiersJournal of Lightwave Technology, 1989
- High-gain erbium-doped traveling-wave fiber amplifierOptics Letters, 1987