Optical fiber submarine cable and method of making

Details Optical fiber submarine cable and method of making Optical fiber submarine cable and method of making

1984-05-16

1986-08-19

Sikes, William L.

G02B 644

Patent

active

046066047

ABSTRACT:
An optical fiber submarine cable includes a fiber optic bundle sealed within a precompressed electrically conductive tube defining a hermetic cavity. An inner layer of helically wound copper-plated steel wires is disposed around the electrically conductive tube. An outer layer of oppositely helically wound copper-plated steel wires is preferably disposed around the inner layer. The wires are tightly wound at a pitch of between 8.degree. and 20.degree. and the outer wires balance the torque from the inner wires. An insulation layer of polyethylene surrounds the outer armor layer. A method of making the cable uses precompression of the tube to increase the strength of the cable.

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Kojima et al, Submarine Optical Fiber Cable: Development and Laying Results; Applied Optics; vol. 21, No. 5; Mar. 1, 1982; pp. 815-821.

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