Abstract: An optical transmission element comprises optical waveguides embedded into a UV-curing protective layer. The optical waveguides and the UV-curing protective layer are surrounded by a sheath, on which spherical elements are arranged. A conductive layer is applied on the sheath and the spherical elements arranged thereon, said conductive layer having a resistivity. of an order of magnitude of 5·1010 ohms per meter measured at a temperature of between 18 degrees Celsius and 24 degrees Celsius and a relative humidity of 45 percent. In the case of an optical transmission element of this type, electrostatic charging when the optical transmission element is blown into an empty conduit is avoided to the greatest possible extent, such that possible blowing-in lengths within a range of between 500 meters and 1000 meters are obtained.

Abstract: An optical cable comprises a swelling yarn, around which several optical transmission elements in the form of micromodules are arranged. A micromodule comprises a bundle of optic fibers, which are surrounded by a sleeve made from a material of plastic. Further swelling yarns are arranged around the optical transmission elements. The optical transmission elements and the swelling yarns are surrounded by a sleeve of paper. The paper sleeve is surrounded by a cable jacket made from a material of plastic. When an optic fiber is exposed, the cable jacket is pulled off, whereupon the paper sleeve tears off and can consequently be easily removed.

Abstract: An optical cable comprises a swelling yarn, around which several optical transmission elements in the form of micromodules are arranged. A micromodule comprises a bundle of optic fibers, which are surrounded by a sleeve made from a material of plastic. Further swelling yarns are arranged around the optical transmission elements. The optical transmission elements and the swelling yarns are surrounded by a sleeve of paper. The paper sleeve is surrounded by a cable jacket made from a material of plastic. When an optic fiber is exposed, the cable jacket is pulled off, whereupon the paper sleeve tears off and can consequently be easily removed.

Abstract: In addition to the mechanical stresses caused by wind, icing, etc., the manufacturer of an optical aerial cable has to consider the electrical stress mechanisms (corona discharge, “tracking” effect) which lead to premature aging of the outer jacket by considering constructive measures and the use of special jacket materials. The outer jacket of the aerial cable contains several PE fusible fibers embedded into the jacketing material, whose conductivity is based on the content of carbon black in the amount of 10% of weight to 40% of weight. The resistance of these fusible fibers manufactured by coextrusion with the outer jacket is sufficiently low at 105 &OHgr;/m-109 &OHgr;/m, to discharge the induced electrical charges to the anchoring spirals fastened to the pole. No large potential differences in the longitudinal direction of the cable can occur on the wet, only partially dried jacket surface.

Abstract: In order to reduce the polarization-mode dispersion, disturbance mechanisms are provided along the length of the respective optical waveguide in a statistically distributed manner. The disturbance mechanisms bring about additional polarization-mode couplings for transmission light in the optical waveguide interior.

Abstract: An optical cable comprises a plurality of light waveguides which are arranged at least one group with a prescribed structure. The light waveguides will have different mechanical sensitivities, with the waveguides having a low mechanical sensitivity being in those regions of the structure which have elevated mechanical stressing occurring.