G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/036 (2006.01)
Patent
CA 2371087
Disclosed is a single mode optical waveguide fiber having a relatively large effective area and good bend resistance. The waveguide fiber is characterized by a segmented core having a central segment (30) and at least one annular segment (32, 34, 36) surrounding the central segment. At least one segment has a negative relative refractive index where the reference refractive index is taken as the index of the cladding. The total dispersion of the fiber is positive for wavelengths above about 1500 nm, dispersion slope is typically less than about 0.08 ps/nm2-km, and induced attenuation under pin array bend testing is typically less than 5 dB/km.
L'invention concerne une fibre guide d'onde optique monomode présentant une section efficace relativement importante et une bonne résistance à la flexion. La fibre guide d'onde se caractérise par un coeur segmenté présentant un segment central (30) et au moins un segment annulaire (32, 34, 36) entourant le segment central. Au moins un segment présente un indice de réfraction relatif négatif, l'indice de référence étant l'indice de la gaine. La dispersion totale de la fibre est positive pour des longueurs d'onde supérieures à 1 500 nm, la pente de dispersion est généralement inférieure à environ 0,08 ps/nm?2¿-km, et l'affaiblissement induit dans un essai de flexion sur groupement de broches est généralement inférieur à 5 dB/km.
Corning Incorporated
Gowling Lafleur Henderson Llp
LandOfFree
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