H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01) G02B 6/036 (2006.01) G02B 6/34 (2006.01)
Patent
CA 2386122
Disclosed is a dispersion compensating waveguide fiber suitable for use in high data rate, high light power telecommunications systems of intermediate length. The refractive index profile of the compensation fiber is segmented. The core region includes three, four, or five, a central segment (28), a first annular segment (30), a second annular segment (32), a third annular segment (34), and a fourth annular segment (36) having different relative refractive indexes. The segment relative refractive indexes and radii are chosen to provide negative total dispersion and negative total dispersion slope over an extended wavelength range. The index profile design is flexible enough to provide compensated links having total dispersion that is positive, negative, or zero, while maintaining appropriate total dispersion slope compensation. In addition, the waveguide fiber of the invention may be cabled or otherwise buffered prior to its use in a communications system.
L'invention concerne une fibre de guide d'onde à compensation de dispersion à utiliser dans des systèmes de télécommunications à débit de données élevé et à forte lumière, de longueur moyenne. Le profile d'indice de réfraction de la fibre de compensation est segmenté. Les indices et les rayons de réfraction relatifs au segment sont choisis de façon à fournir une dispersion totale négative et une pente de dispersion totale négative sur une plage de longueur d'ondes importante. La conception du profile d'indice est assez souple pour fournir des liaisons compensées ayant une dispersion totale positive, négative ou nulle, tout en maintenant une compensation de pente de dispersion totale adéquate. La fibre de guide d'ondes de l'invention peut, en outre, être torsadée ou tamponnée avant son utilisation dans le système de communications.
Cain Michael B.
Srikant V.
Cain Michael B.
Corning Incorporated
Gowling Lafleur Henderson Llp
Srikant V.
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