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System and method for monitoring an optical fiber

  • US 7,310,135 B2
  • Filed: 11/23/2005
  • Issued: 12/18/2007
  • Est. Priority Date: 11/23/2005
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring an optical fiber between a managed location and a remote location, the method comprising:

  • receiving concurrently at the remote location from the managed location, a monitoring wavelength signal and a communication wavelength signal over an optical fiber between the managed location and the remote location;

    passively separating without using electrical power for the separating the monitoring wavelength signal from the communication wavelength signal at the remote location;

    passively coupling without using electrical power for the coupling the separated monitor wavelength signal on to the optical fiber at the remote location; and

    sending the separated monitoring wavelength signal over the optical fiber from the remote location to the managed location for monitoring at the managed location.

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