Poor Fiber Cleave: Angled or chipped cleaves prevent proper core alignment. Misalignment: Incorrect positioning of fibers leads to light leakage. Core vs Cladding Mismatch: Using different fiber types without adjustment. What is it that gets spliced onto a fiber optic cable strand or strands? We call it a fiber-optic pigtail. 2dB/km (typical SMF-28e+ at 1550nm), you've got 20dB of loss due to the glass path, but then the 10 splices would add another 5dB if your splices are 0. 5dB (a *really* bad splice) each. However, in real-world installations, whether underground, aerial, or in harsh industrial environments, fiber cables can and do fail. While some loss is unavoidable, excessive loss can compromise network performance. Modern fiber optic networks usually keep splice loss. In this edition of our LinkedIn Newsletter, we break down the four biggest reasons fiber splicing fails and how you can fix them instantly.