The best method is to use a bare fiber adapter on the power meter to measure the output of the bare fiber, then attach the splice. There are two reasons we may want to test bare fiber, by that we mean fiber that has not been terminated in connectors but is simply plain optical fiber, The first one is to ensure the fiber or cable being manufactured meets its specifications, as is done by every manufacturer. The Contractor must utilize the correct equipment and testing techniques to gain acceptance, or the work cannot be approved. This testing. We'll explain why it's vital to test fiber optic cables, the three most popular methods, and when you should use them. Related: Fiber Optic Connectors – Identification Guide Regularly testing fiber optic cables helps minimize network downtime, lengthens the network's longevity, reduces maintenance. Optical Time Domain Reflectometer (OTDR) is an instrument that can understand the uniformity, defect, fracture, joint coupling and other properties of optical fiber by analyzing the measurement curve. This comprehensive guide will equip you with the knowledge and skills to accurately assess the integrity of a pigtail, helping you identify issues.