This LC pigtail is a multimode cable with high-grade LC UPC fiber optic connector on one end, another end unterminated. 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. Understanding the differences between single-mode and multi-mode fiber pigtails is crucial for selecting the right type for data centers, telecommunications, FTTH (Fiber to the Home) installations, or enterprise networks. Our premium pigtails offer low insertion loss and custom length options. A thin, strong layer, only 900 µm thick, covers the glass.