Fiber Optic Pigtails, or bare fibers, feature an optical fiber connector on one end and a bare fiber end on the other. They are the bridge between fiber optic cables in the field and the equipment or patch panels that manage them. Get the wrong connector type, the wrong polish, or skip proper fusion splicing technique—and you're looking at elevated signal loss, increased back reflection, and a. A pigtail fiber indicates a short length of optical fiber cable that has a pigtail connector (for example, SC, FC, ST, LC, etc. This essential function of pigtail fiber is. ZERO Connect manufactures a variety of pigtails, with the most common being tight buffer simplex, 6str, and 12str pigtails. Below are the features of these assemblies: Cable Diameter: 900um, 2mm, 3mm.