G - Physics – 02 – B
Patent
G - Physics
02
B
88/97
G02B 6/44 (2006.01)
Patent
CA 1245894
ABSTRACT OF THE DISCLOSURE A submarine cable with optical fibers which prevents damage to the fibers due to water pressure without the use of an external armor. The cable has a central core with a strand which provides the cable tensile strength and which is surrounded and contacted by a layer of plastic material which has helical grooves which receive the optical fibers which may have a pro- tective covering. The layer of plastic material is surrounded by sheath in the form of a layer of plastic material. The grooves and any spaces radially inwardly of the sheath, such as the spaces between the wires of the strands, are filled with a substantially incompressible fluid, such as a grease or jelly. If the optical fiber protective layer is a tube loosely receiving the optical fiber, or optical fibers, the space within the tube not filled by optical fibers is filled with a substantially incompressible fluid. The layer of plastic material forming the sheath may at least partially extend into the grooves.
502608
Smart & Biggar
Societa Cavi Pirelli S.p.a.
LandOfFree
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