High-quality tight-buffered fiber optic pigtail protects the fiber optic core, and is easy to strip for splicing. Structural Diagram Cross-section Diagram Superior cable assemblies reduce light loss and easily meet your diverse cabling requirements. Available in a range of multimode and single-mode fibers with SC, ST or LC connectors. They provide a fast way to make communication devices in the field. The connector end is polished and tested under factory conditions, ensuring low insertion loss and high return loss. 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 fiber pigtail is typically a fiber optic cable with one end factory pre-terminated fiber connector and the other exposed fiber.