Fiber-optic patch cord
A fiber-optic patch cord is constructed from a core with a high refractive index, surrounded by a coating with a low refractive index, that is strengthened by aramid yarns and surrounded by a protective jacket. Transparency of the core permits transmission of optic signals with little loss over great distances. The coating''s lower refractive index causes light to be reflected back toward the core, minimizing signal loss. The protective aramid yarns and outer jacket minimize physical damage to the core and coating.