A METHOD OF MAKING A HIGH-TENSILE OPTICAL WAVEGUIDE

摘要

A method for manufacturing sheathed high tensile strength optical waveguides having drawn glass fiber optical cores in which the cores are passed through a molten thermoplastic polyamide to form an adhering coating which is then cooled to form a uniform sheath. The sheath is flexible over a temperature range of -40 DEG C. to +80 DEG C. and the polyamide contains dimeric fatty acid as one of its monomer components and has a glass transition temperature below -10 DEG C.