HardOCP News
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- Dec 31, 1969
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The University of Arizona College of Engineering is testing an invisible border monitoring system that uses laser pulses transmitted through fiber-optic cables buried under the ground.
A unique underground surveillance system tested by UA researchers could be used to watch the entire US‐Mexico border continuously. The border-monitoring system, known as Helios, consists of laser pulses transmitted through fiber-optic cables buried in the ground that respond to movements on the surface above. A detector at one or both ends of the cable analyzes these responses.