Secure fiber optic telecommunications system and method

  • US 20020093713A1
  • Filed: 01/17/2001
  • Published: 07/18/2002
  • Est. Priority Date: 01/17/2001
  • Status: Active Grant
First Claim
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1. A fiber optic data transmission system comprising:

  • a transmitter having a light source, a phase modulator for phase modulating the light source, and a controller for controlling the phase modulator as a function of an input electronic data stream and a second electronic data stream having a delay, the phase modulator creating a phase-modulated optical signal;

    an optical fiber receiving the optical signal; and

    a receiver receiving the optical signal from the optical fiber, the receiver having a splitter for splitting the optical signal into a first path and a second path, with a path length difference between the first path and second path being a function of the delay in the second electronic data stream.

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