Luna Technologies has launched a new addition to its optical backscatter reflectometer product line. The OBR 4600 provides advanced diagnostics and inspection capabilities to fiber optic manufacturers, developers and installers. Offering ultrahigh-resolution, high-sensitivity measurements of optical fiber assemblies and networks up to 2 km in length, the instrument provides measurement speed significantly higher than its predecessor. It also features a new “spot scan” option, enabling users to measure only a specific area of interest on the fiber. It can easily locate, identify and troubleshoot macro-bends, couplers, splices, connectors and breaks. Additional features include an automated pass/fail verification of fiber assemblies; a monitor distributed temperature and strain profile along a network or fiber, or inside a component or module; and it can look inside components to evaluate each interface for RL and IL.