Communication cable with glass fiber light waveguides

摘要

A communication cable having at least one light waveguide of a glass fiber provided with a close fitting casing characterized by the casing being prestressed in tension to exert a uniform constant longitudinal compression upon the glass fiber. The casing material, which may be a thermoplastic material selected from a group consisting of polyester, fluoropolymers, polyamides and polymethacrylates, can also be impregnated with filaments which are also placed in tension to apply a compressive force on the glass fiber.