Optical fiber is coated by UV cure resin for its protection, when it is manufactured with delineation. UV cure resin used in the field of optoelectronics is either of acrylate resin and epoxy resin. For the coating of optical fiber, the acrylate resin is used; Acrylate resin is the general term for methyl methacrylate polymer and its copolymer with acrylate.
Depending on whether optical fiber is coated or not, the optical fiber is named differently, optical fiber wire or optical fiber core wire. A typical structure of optical fiber is shown below.