Coaxial illumination is particularly valuable when inspecting single-mode fibers and high-quality polished connectors. For higher-detail surface evaluation, a 1000X microscope for fiber inspection can provide improved visibility of scratches, pits, and polishing defects on. This article explains the critical importance of fiber endface inspection for maintaining performance and reliability in fiber optics. It details how contamination, scratches, and defects on fiber connectors and bare fiber ends degrade performance by increasing insertion loss and reducing return. Thorlabs' Fiber End Face Inspection Systems include a Fiber Cleave Analyzer that performs interferometric measurements on bare fiber and a Visual Scratch & Defect Inspection System to examine the end face of fiber connectors. We also offer two scanning white-light interferometers (SWLI) that enable. It's crucial to inspect, clean, and reinspect fiber end faces before mating connectors — whether on patch cords and trunks within the network or on the test reference cord you connect to your tester. And if it's dirty, it needs to be cleaned with the right tools or you might just make it worse.
