Optical submarine cable
AssigneeAlcatel
InventorsTom Harald Birkeland, Tom Eirik Toften, Inge Vintermyr
Life of this patent
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Abstract
An optical submarine cable with a sheath 8 and a core is proposed. It comprises optical fibers 1 which are enclosed in a metal tube 3. The tube is disposed near the axis of the cable. The cable comprises at least two metal tubes 3 and the tubes are SZ-stranded.
Claims17
An optical submarine cable with a sheath and a core which comprises optical fibers enclosed in tubes disposed near the axis of the cable and SZ-stranded, characterized in that
- said tubes are welded steel tubes filled with a water blocking compound,
- filler elements are disposed between said steel tubes to create an approximately round cross section of said core,
- said sheath encloses said core, the interstices in the core being filled with hydrophobic material,
- at least one armoring layer of galvanized steel wires protects said sheath, and
- said armouring layer is enclosed in an outer jacket (13).
An optical submarine cable with a sheath and a core which comprises optical fibers enclosed in tubes disposed near an axis of the cable and SZ stranded, characterized in that:
- said tubes are welded steel tubes filled with a water blocking compound,
- some welded steel tubes are disposed between the other welded steel tubes to create an approximately round cross section of said core,
- said sheath encloses said core, the interstices in the core being filled with hydrophobic material,
- at least one armoring layer of galvanized steel wires protects said sheath, and
- said armouring layer is enclosed in an outer jacket.
An optical submarine cable with a sheath and a core which comprises optical fibers enclosed in tubes disposed near an axis of the cable and SZ stranded, characterized in that:
- said tubes are welded steel tubes, and SZ stranded around a central welded steel tube, said tubes being filled with a water blocking compound and forming a core with an approximately round cross section,
- said sheath encloses said core, the interstices in the core being filled with hydrophobic material,
- at least one armoring layer of galvanized steel wires protects said sheath, and
- said armoring layer is enclosed in an outer jacket.
An optical submarine cable with a sheath and a core which comprises optical fibers enclosed in tubes disposed near the axis of the cable and SZ-stranded, characterized in that the tubes are welded metal tubes filled with water blocking compound,
- filler elements are disposed between the metal tubes to create an approximately round cross section of the core,
- the sheath encloses the core, the interstices in the core being filled with hydrophobic material,
- at least one armoring layer of galvanized steel wires protects the sheath, and the armouring layer is enclosed in an outer jacket.
Dependencies are inferred from the claim text.