Rollable optical fiber ribbon with low attenuation, large mode field diameter optical fiber and cable
AssigneeCorning Research & Development Corporation
InventorsDana Craig Bookbinder, Ming-Jun Li, Pushkar Tandon
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Abstract
A rollable optical fiber ribbon utilizing low attenuation, bend insensitive fibers and cables incorporating such rollable ribbons are provided. The optical fibers are supported by a ribbon body, and the ribbon body is formed from a flexible material such that the optical fibers are reversibly movable from an unrolled position to a rolled position. The optical fibers have a large mode filed diameter, such as ≥9 microns at 1310 nm facilitating low attenuation splicing/connectorization. The optical fibers are also highly bend insensitive, such as having a macrobend loss of ≤0.5 dB/turn at 1550 nm for a mandrel diameter of 15 mm.
Claims4
A cable comprising:
- a cable jacket;
- a plurality of buffer tubes surrounded by the cable jacket,
- an optical fiber ribbon located within each buffer tube, each optical fiber ribbon comprising a plurality of optical fibers coupled together via a ribbon body, wherein the ribbon body is formed from a flexible material such that the plurality of optical fibers are reversibly movable from an unrolled position to a rolled position;
- and
- active particles located within each buffer tube, wherein an average maximum outer dimension of the active particles within the buffer tube is <50 microns and each buffer tube has less than 5 mg of active particles per meter of buffer tube length;
- wherein each optical fiber comprises:
- a mode field diameter of ≥9 microns at 1310 nm;
- and
- a macrobend loss of ≤0.5 dB/turn at 1550 nm for a mandrel diameter of 15 mm.
Dependencies are inferred from the claim text.