Foamed fiber optic cable
First Claim
Patent Images
1. A fiber optic cable comprising:
- an optical fiber;
a strength layer surrounding the optical fiber;
a jacket assembly surrounding the strength layer, the jacket assembly including a foam having a closed cell structure and including a percentage of air bubbles in a range of about 5% to about 50%, the foam including a plurality of shrinkage reduction members embedded in the foam.
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Accused Products
Abstract
A fiber optic cable includes an optical fiber, a strength layer surrounding the optical fiber, and a jacket assembly surrounding the strength layer. The jacket assembly includes a foam. A method for manufacturing a fiber optic cable includes mixing a base material, a chemical foaming agent and a shrinkage reduction material into a mixture in an extruder. The mixture is heated so that the base material and the chemical foaming agent form a foam with shrinkage reduction material embedded into the foam. An optical fiber and strength layer are fed into a crosshead. The mixture is extruded around the optical fiber and the strength layer to form a jacket assembly.
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Citations
8 Claims
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1. A fiber optic cable comprising:
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an optical fiber; a strength layer surrounding the optical fiber; a jacket assembly surrounding the strength layer, the jacket assembly including a foam having a closed cell structure and including a percentage of air bubbles in a range of about 5% to about 50%, the foam including a plurality of shrinkage reduction members embedded in the foam. - View Dependent Claims (2, 3, 4)
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5. A fiber optic cable comprising:
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an optical fiber; a strength layer surrounding the optical fiber; a jacket assembly surrounding the strength layer, wherein the jacket assembly includes an inner layer and an outer layer, the inner layer is a foam having a closed cell structure, the foam includes a percentage of air bubbles in the range of about 5% to about 50%, the inner layer including a plurality of shrinkage reduction members embedded in the foam, the shrinkage reduction members being of a liquid crystal polymer material. - View Dependent Claims (6, 7, 8)
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Specification