Cylindrical enclosure for optical waveguide cable

An optical waveguide cable defined by a longitudinal axis passing through a geometrical center of the optical waveguide cable, the optical waveguide cable comprising:

• one or more optical waveguide bands positioned substantially along the longitudinal axis of the optical waveguide cable, wherein each of the one or more optical waveguide bands has a plurality of light transmission elements, wherein the plurality of light transmission elements being made of silicon based glass;
• and
• one or more layers substantially concentric to the longitudinal axis of the optical waveguide cable, wherein the one or more layers surround the one or more optical waveguide bands and wherein each of the one or more layers being substantially along the longitudinal axis of the optical waveguide cable, the one or more layers comprising:
• a cylindrical enclosure positioned substantially along the longitudinal axis of the optical waveguide cable, wherein the cylindrical enclosure has density of at most 0.935 gram per cubic centimeter, wherein the cylindrical enclosure has a melt mass-flow rate of about 0.70 gram per 10 minutes and wherein the cylindrical enclosure (106) has a kink radius of about 4D.