Abstract: In one embodiment, an optical cable, which is a flat drop cable, includes a cavity shaped in the form of a stadium in a sectional view of the optical cable. The cable further includes an outer sheath enclosing the cavity, a first strength member, and a first optical fiber element disposed in the cavity. The first optical fiber element includes an optical fiber and has an oscillating pattern within the cavity on an oscillation plane parallel to a longitudinal plane of the cable. The height of the cavity in the sectional view substantially corresponds to a height of the first optical fiber element.

Abstract: An optical cable comprises a group of optical modules. Each of the optical modules comprises a strength member, a plurality of optical fibers arranged about the strength member, the plurality of optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers. The strength member is covered by a coating, and the plurality of optical fibers are at least partly embedded within the coating. The optical cable comprises an outer sheath around the group of optical modules. The optical cable does not have a central strength member.

Abstract: An optical cable comprising an optical core and an external sheath surrounding the optical core, wherein the external sheath comprises an inner layer circumferentially enclosing the optical core and an outer layer circumferentially enclosing the inner layer and comprising at least one longitudinal cavity accessible from outside the external sheath and extending through at least a portion of the outer layer thickness. The inner and outer layers of the external sheath are made of a first material having a first tensile strength, while the cavities in the outer layer are filled with a second material having a second tensile strength lower than the first tensile strength.

Abstract: In one embodiment, an optical cable, which is a flat drop cable, includes a cavity shaped in the form of a stadium in a sectional view of the optical cable. The cable further includes an outer sheath enclosing the cavity, a first strength member, and a first optical fiber element disposed in the cavity. The first optical fiber element includes an optical fiber and has an oscillating pattern within the cavity on an oscillation plane parallel to a longitudinal plane of the cable. The height of the cavity in the sectional view substantially corresponds to a height of the first optical fiber element.

Abstract: An optical cable comprises a group of optical modules. Each of the optical modules comprises a strength member, a plurality of optical fibers arranged about the strength member, the plurality of optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers. The strength member is covered by a coating, and the plurality of optical fibers are at least partly embedded within the coating. The optical cable comprises an outer sheath around the group of optical modules. The optical cable does not have a central strength member.

Abstract: An optical cable comprising an optical core and an external sheath surrounding the optical core, wherein the external sheath comprises an inner layer circumferentially enclosing the optical core and an outer layer circumferentially enclosing the inner layer and comprising at least one longitudinal cavity accessible from outside the external sheath and extending through at least a portion of the outer layer thickness. The inner and outer layers of the external sheath are made of a first material having a first tensile strength, while the cavities in the outer layer are filled with a second material having a second tensile strength lower than the first tensile strength.

Abstract: An optical cable includes an optical module which includes a strength member, a plurality of optical fibers arranged about the strength member, the optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers.

Abstract: A self-supporting overhead telecommunication/power cable includes a supporting portion and a transmission portion mutually arranged according to a figure-8 configuration. The transmission portion includes at a central position thereof, an optical fibre conductor and, at a radially outer position with respect to the optical fiber conductor, electrical conductors stranded around the optical fiber conductor. Preferably, the electrical conductors are grouped into sub-units which are stranded around the optical fiber conductor to provide a mechanical protection thereto.

Abstract: It is disclosed a cable assembly comprising a common figure-8 outer jacket comprising a first lobe and a second lobe, wherein the first lobe surrounds an electric core with a relevant first extruded inner sheath housing a strength member; and the second lobe surrounds an optical core with a relevant second extruded inner sheath.

Abstract: An optical cable includes an optical core and an external sheath surrounding the optical core. The external sheath includes a first material having a first, higher fracture toughness and a second material having a second, lower fracture toughness. The first and second materials are arranged so that the second, lower fracture toughness material is accessible from outside the cable along at least one longitudinally extending area of the sheath outer surface. For accessing the optical core of the cable, a short longitudinal cut, namely, few centimeters, is made with a blade in the accessible second, lower fracture toughness material. Then, its cut edges are pulled apart by hand. The pulling force causes the lower fracture toughness material to fracture, thereby propagating the initial short cut longitudinally along the sheath through its whole thickness.

Abstract: An optical cable includes an optical module which includes a strength member, a plurality of optical fibers arranged about the strength member, the optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers.

Abstract: It is disclosed a cable assembly comprising a common figure-8 outer jacket comprising a first lobe and a second lobe, wherein the first lobe surrounds an electric core with a relevant first extruded inner sheath housing a strength member; and the second lobe surrounds an optical core with a relevant second extruded inner sheath.

Abstract: A self-supporting overhead telecommunication/power cable includes a supporting portion and a transmission portion mutually arranged according to a figure-8 configuration. The transmission portion includes at a central position thereof, an optical fibre conductor and, at a radially outer position with respect to the optical fibre conductor, electrical conductors stranded around the optical fibre conductor. Preferably, the electrical conductors are grouped into sub-units which are stranded around the optical fibre conductor to provide a mechanical protection thereto.

Abstract: An optical cable includes an optical core and sheath enclosing the optical core. The optical core includes a number of optical units having respective colors and being wound about a longitudinal axis of the cable. The sheath includes at least one non opaque longitudinal section through which a sequence of colors of the optical units is visible from outside the cable. The color sequence acts as an identifier for the cable. The cable may therefore be easily identified (e.g. amongst other cables laid down within the same duct) by a simple visual inspection of the cable's inner structure through the non opaque section(s) of its external sheath.

Abstract: An optical cable includes an optical core and an external sheath surrounding the optical core. The external sheath includes a first material having a first, higher fracture toughness and a second material having a second, lower fracture toughness. The first and second materials are arranged so that the second, lower fracture toughness material is accessible from outside the cable along at least one longitudinally extending area of the sheath outer surface. For accessing the optical core of the cable, a short longitudinal cut, namely, few centimetres, is made with a blade in the accessible second, lower fracture toughness material. Then, its cut edges are pulled apart by hand. The pulling force causes the lower fracture toughness material to fracture, thereby propagating the initial short cut longitudinally along the sheath through its whole thickness.

Abstract: An optical cable includes an optical core and sheath enclosing the optical core. The optical core includes a number of optical units having respective colors and being wound about a longitudinal axis of the cable. The sheath includes at least one non opaque longitudinal section through which a sequence of colors of the optical units is visible from outside the cable. The color sequence acts as an identifier for the cable. The cable may therefore be easily identified (e.g. amongst other cables laid down within the same duct) by a simple visual inspection of the cable's inner structure through the non opaque section(s) of its external sheath.

Abstract: An adapter device for applying a fiber-optic monitoring system to a component to be monitored includes a shell adapted to surround the component to be monitored, the shell having a rounded exposed surface onto which a first optical fiber of the fiber-optic monitoring system can be wrapped.

Abstract: An adapter device for applying a fiber-optic monitoring system to a component to be monitored includes a shell adapted to surround the component to be monitored, the shell having a rounded exposed surface onto which a first optical fiber of the fiber-optic monitoring system can be wrapped.

Abstract: An optical fiber drop cable for suspension installation includes electrical conductors and at least one optical fiber. An electrically non-conductive reinforcing sleeve houses the conductors and the or each optical fiber. The reinforcing sleeve is housed in sheathing. In addition to or instead of the optical fiber or optical fibers, the reinforcing sleeve may house one or more elongate containers, preferably plastic tubes, for housing optical fibers.

Abstract: An optical fiber unit having a sheath and a plurality of optical fiber elements loosely housed in the sheath. The sheath is coated with particles of an adherence reducing substance and has a radial thickness that is not substantially greater than 0.3 mm. The coating of adherence reducing particles is applied as a liquid coating. The liquid coating is a dispersion of the particles and heat is applied to evaporate the liquid content of the liquid coating to produce a dry coating of particles on the sheath.