Foamed fiber optic cable

Details Foamed fiber optic cable Foamed fiber optic cable

2011-01-18

2011-01-18

Font, Frank G (Department: 2872)

Optical waveguides

Optical transmission cable

Tightly confined

C385S123000

Reexamination Certificate

active

07873249

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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