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Identification apparatus of optical cable and identification method

  • US 8,233,144 B2
  • Filed: 04/04/2008
  • Issued: 07/31/2012
  • Est. Priority Date: 04/09/2007
  • Status: Active Grant
First Claim
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1. An optical cable identification apparatus for identifying an optical cable by disturbing an optical fiber, existing inside an optical cable desired to be identified, from outside the optical cable, the optical cable identification apparatus comprising:

  • an optical unit for transmitting two optical signals to a single strand of optical fiber inside the optical cable, and detecting a phase difference, a time difference, and light intensity between two optical signals which are reflected due to the disturbance from the outside;

    a single-fiber ending unit for generating the time difference;

    a signal processing unit for removing noise from the two reflected optical signals and demodulating the optical signals; and

    a sound output unit for outputting the optical signals from the signal processing unit as sounds.

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