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Digital fiber optic sensor system

  • US 4,356,395 A
  • Filed: 07/06/1979
  • Issued: 10/26/1982
  • Est. Priority Date: 07/06/1979
  • Status: Expired due to Term
First Claim
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1. Apparatus for converting a single optical pulse into a serial train of time-multiplexed pulses of essentially uniform amplitude and shape, comprising means for simultaneously directing a single light pulse onto the ends of optical fibers such that each fiber receives the same amount of light, the fibers being of different lengths whereby the pulses emanating from all of the opposite ends of the fibers will be delayed one with respect to the other, said pulses emanating from the opposite ends of the fibers being directed onto reflective surfaces and being thereafter reflected back through the optical fibers of different lengths to a single optical fiber where they pass through said single fiber as a serial train of pulses.

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