Optical-fiber cable incorporated longer-sized subaqueous unit

An optical fiber incorporated subaqueous cable comprising:

• a core body;
• a plurality of optical fiber units disposed in a periphery of the core body, each optical fiber unit comprising:
• a stainless steel tube;
• a single optical fiber enclosed within the stainless steel tube;
• and
• a layer of plastic material on an outer periphery of the stainless steel tube;
• a plastic sheath surrounding the plurality of optical fiber units, the layer of plastic material on the stainless steel tube having a higher melting temperature than that of the material of the plastic sheath;
• and
• a plurality of armoring iron wire bundles surrounding an outside of the plastic sheath.

An optical fiber incorporated subaqueous cable comprising:

• a core body;
• a plurality of optical fiber units wound on an outside of the core body, each optical fiber unit comprising:
• a stainless steel tube;
• a single optical fiber enclosed within the stainless steel tube;
• and
• a layer of plastic surrounding the stainless steel tube;
• a plastic sheath surrounding the plurality of optical fiber units wound on a periphery of the core body;
• and
• a plurality of armory iron wire bundles surrounding the plastic sheath.

An optical fiber incorporated subaqueous cable comprising:

• a core body of an electric power cable or a fluid supply pipe;
• a plastic sheath surrounding a periphery of said core body;
• a plurality of optical fiber units wound on a periphery of said plastic sheath, each optical fiber unit comprising:
• a stainless steel tube;
• a single optical fiber enclosed within the stainless steel tube;
• and
• a layer of plastic surrounding the stainless steel tube;
• and
• a plurality of armoring iron wire bundles surrounding the plurality of optical fiber units wound on a periphery of the plastic sheath.

An optical fiber incorporated subaqueous cable comprising:

• a core body;
• a plastic sheath surrounding a periphery of the core body;
• a plurality of optical fiber units wound on a periphery of the plastic sheath, each optical fiber unit comprising:
• a metal tube having an outer diameter of about 1 to 2 mm;
• a single optical fiber enclosed within the stainless steel fiber;
• and
• a layer of plastic surrounding the stainless steel tube, the layer of plastic having a thickness of about 0.5 to 1.0 mm;
• and
• a plurality of armoring wire bundles surrounding the plurality of optical fiber units wound on a periphery of the plastic sheath.