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Integrated optical time domain reflectometer and optical supervisory network

  • US 20030210387A1
  • Filed: 08/30/2001
  • Published: 11/13/2003
  • Est. Priority Date: 12/04/2000
  • Status: Active Grant
First Claim
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1. An optical supervisory channel apparatus provided with an integrated time domain reflectometer, comprising:

  • OSC equipment;

    a pulse generator for providing a diagnostic pulse;

    a light source for launching an optical diagnostic signal comprised of a supervisory channel modulated with said pulse over a strand of fiber;

    a receiver for detecting a reflected variant of said optical diagnostic signal generated by irregularities in said fiber strand; and

    means for extracting reflectometry information from said reflected variant, wherein said light source is used for launching said optical diagnostic signal over said supervisory channel whenever said apparatus operates in a diagnostic mode, and is used for transmitting said supervisory channel in normal operation mode.

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