altLuna Technologies (Roanoke, VA) has announced the Optical Backscatter Reflectometer (OBRTM) 4400, an optical time domain reflectometer (OTDR) that can diagnose, locate, and troubleshoot problems in fiber optic components and assemblies such as splices, breaks, connectors, bends, and hot-spots. The OBR 4400 features micrometer spatial resolution, range to 2 km, and sensitivity of -130 dB. Integrated distributed sensing capability enables users to view the effects from component-level heating in optical amplifiers, monitor temperature inside cabinets and enclosures, and identify the location of fiber assemblies by touching the fiber. The OBR 4400 is also suitable for use in component manufacturing, aerospace installation and maintenance testing, mobile platforms, and secure networks.

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