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Sensor Design Grants New Life to Damaged Optical Fibers

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An international collaboration has found new use for damaged optical fibers, in measuring magnetic fields. Researchers have developed a sensor design that is significantly more sensitive than conventional fiber optic methods of magnetic detection, relying on the “fiber fuse effect” that occurs when high-powered light is injected into an optical fiber with tight bends, bad connectors, and other less-than-ideal conditions. When high-powered light is injected into such a fiber, the optical energy becomes trapped in the core of the fiber, leading to an optical discharge that moves...Read full article

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