COLORED COATED OPTICAL FIBER AND ITS MANUFACTURE

摘要

PROBLEM TO BE SOLVED: To manufacture a colored coated optical fiber reduced in temporal restrictions on the manufacturing process, improved in the adhesive strength between a coating layer and a colored layer, and also improved in the terminal processing operability of the coated optical fiber. SOLUTION: This colored coated optical fiber is manufactured by forming the coating layer 2 whose surface is machined into a rough surface 3 on the outer periphery of an optical fiber and forming the colored layer 4 on the outer periphery thereof. Further, a coated optical fiber ribbon is formed by coating colored coated optical fibers together. As for the rough surface, surface roughness Ra is defined as 0.012 to 0.080μm and surface area rate is defined as 5×10<-4> to 40×10<-4> .