In this detailed video, we'll walk you through the fiber optic pigtail splicing process — from preparation to final testing. Executive Summary: A fiber optic pigtail is one of the most commonly specified yet least understood components in structured cabling. 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. Fiber optic termination is a crucial process in establishing reliable and high-performance fiber networks. This is exactly why most professional installers have moved away from field-termination and toward splicing.