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US 9,069,147 B2Granted
Optical fiber cables
AssigneeCorning Optical Communications LLC
InventorsJulian Latelle Greenwood, III, Scott Allen McDowell, Reginald Roberts, David Alan Seddon
Life of this patent
Estimating the term…
Abstract
Cables have reduced freespace, reduced tube diameters, and reduced strength member diameters. The cables are designed to pass robustness testing such as GR-20 while using smaller amounts of raw materials to produce.
Claims17
A cable, comprising:
- a polymeric cable jacket having a strength member at least partially embedded therein;
- a plurality of optical fibers arranged as a ribbon stack;
- wherein the strength member has a strength member area and the ribbon stack has a ribbon stack fiber area, wherein a product of the strength member area and the strength member elastic modulus is a strength member EA, and a product of the ribbon stack fiber area and ribbon stack elastic modulus is a ribbon stack EA, and wherein the ratio of the ribbon stack EA to strength member EA is at least 0.0015 times the number of optical fibers in the ribbon stack;
- wherein the plurality of optical fibers is between 12-144 optical fibers, and wherein the polymeric cable jack has a jacket area, and a ratio of the strength member area to the jacket area lies in the range of 6-10.
1 more element
A cable, comprising:
- a polymeric cable jacket having a strength member at least partially embedded therein;
- and a plurality of optical fibers arranged as a ribbon stack;
- wherein the polymeric cable jacket has a jacket area, the strength member has a strength member area, and a ratio of the strength member area to the jacket area lies in the range of 6-10;
- wherein the ribbon stack has a ribbon stack fiber area, wherein a product of the strength member area and a strength member elastic modulus is a strength member EA, and a product of the ribbon stack fiber area and a ribbon stack elastic modulus is a ribbon stack EA, and wherein the ratio of the ribbon stack EA to strength member EA is at least 0.0015 times the number of optical fibers in the ribbon stack;
- wherein a buffer tube has an inner diameter and the strength member has strength member height that is within 1.3 mm of the inner diameter of the buffer tube.
2 more elements
Dependencies are inferred from the claim text.