Fiber optic testing uses specialized tools and facilities to determine the conditions or impacts that can affect signal strength, continuity and attenuation. It can also include forensic cross-sectioning of fiber optic cables. Optical Time-Domain. Independent fiber optic testing services for cables (OPGW, ADSS, OPPC) that enables you to choose reliable products and ensure your infrastructure meets or exceeds your expected design life. As the components like fiber, connectors, splices, LED or laser sources, detectors and receivers are being developed, testing confirms their performance specifications and helps. What is Fiber Testing? Learn all about fiber testing including testing fiber for optical loss and optical speed as well as fiber testing best practices and procedures. Why Test? Why Test? Start fiber testing with VIAVI today! Are you ready to take the next step with one of our fiber optic testers?Manufacturers of fiber optic products must demonstrate compliance to various safety and performance standards and requirements in order to achieve market access goals and build customer trust. UL Solutions can assess fiber optic products, including but not limited to optical fibers, optical fiber. Visible light source testing is a straightforward way to check the continuity of fiber optic cables.