H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01)
Patent
CA 2397177
A method of compensating for chromatic dispersion in an optical signal transmitted on a long-haul terrestrial optical communication system including a plurality of spans, including: allowing chromatic dispersion to accumulate over at least one of the spans to a first predetermined level; and compensating for the first predetermined level of dispersion using a dispersion compensating fiber causing accumulation of dispersion to a second predetermined level. There is also provided a hybrid Raman/EDFA amplifier including a Raman portion and and EDFA portion with a dispersion compensating fiber disposed therebetween. An optical communication system and a method of communicating an optical signal using such a Raman/EDFA amplifier are also provided.
L'invention concerne un procédé permettant de compenser la dispersion chromatique d'un signal optique transmis dans un système de communication optique terrestre longue distance comprenant une pluralité de sections. Ce procédé consiste à laisser la dispersion chromatique s'accumuler dans au moins une des sections jusqu'à un premier niveau prédéterminé, et à compenser ce premier niveau de dispersion accumulée au moyen d'une fibre de compensation de dispersion provoquant l'accumulation de la dispersion à un second niveau prédéterminé. L'invention concerne également un amplificateur hybride Raman/EDFA (à fibre dopée à l'erbium) comprenant une partie Raman et une partie EDFA séparées par une fibre compensatrice de dispersion. L'invention concerne en outre un système de communication optique et un procédé de transmission de signal optique utilisant un amplificateur Raman/EDFA du type décrit.
Golovchenko Ekaterina
Nagel Jonathan
Nissov Morten
Pilipetskii Alexei N.
Ten Sergey
Kirby Eades Gale Baker
Tyco Electronics Subsea Communications Llc
Tyco Telecommunications (us) Inc.
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