Résumé
Ľamplification optique a considérablement modifié la conception des systèmes de transmission sur fibre optique, particulièrement celle des systèmes à grande distance tels que les systèmes transocéaniques. Elle a conduit à prendre en compte ľaccumulation des effets de la dispersion chromatique et de ľautomodulation de phase ainsi que celle du bruit ďémission spontanée amplifiée. Dans ce contexte, la technique de transmission par solitons est une alternative attrayante pour la transmission de débits élevés. Elle se heurte toutefois, dans sa mise en œuvre, à des limitations principalement dues aux interactions non linéaires affectant le signal et le bruit. Les études actuelles visent à s’affranchir de ces limitations notamment par ľintroduction de techniques de traitement optique en ligne plus ou moins complexes. Ces études sont illustrées par un certain nombre de résultats obtenus au cnet dans ce domaine.
Abstract
Optical amplification has fundamentally changed the design of optical fibre transmission systems, especially transoceanic and other such long-haul systems. These changes have made it necessary to consider the cumulative effects of chromatic dispersion and self phase modulation as well as the effect of amplified spontaneous emission (ase) noise. In this context, transmission using solitons is an attractive alternative for high bitrate transmission. Its practical implementation is subject to limitations, however, due primarily to non-linear interaction between signal and noise. Current research work is focused on overcoming these limitations, in particular through the introduction of on-line optical processing techniques of varying degrees of sophistication. This article looks at results achieved by cnet.
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Vandamme, P., Thomine, JB. & Gallion, P. La transmission par solitons sur fibre optique soliton transmission on optical fibres. Ann. Télécommun. 50, 79–97 (1995). https://doi.org/10.1007/BF03000771
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DOI: https://doi.org/10.1007/BF03000771