System and method for monitoring an optical fiber
First Claim
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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Accused Products
Abstract
A system and method are disclosed for monitoring a fiber optic network between a managed location and a remote location. In a particular embodiment of the method the monitoring wavelength signal is separated from the communication wavelength signal at the remote location and coupled on to the optical fiber carrying a communication wavelength signal from the remote location. In a particular embodiment of the system, the system includes a first optical filter for coupling a selected monitoring wavelength signal on to an optical fiber carrying a communication wavelength signal between the managed location and the remote location and a second optical filter at the managed location for recovering a permanently separated monitoring wavelength signal sent to the managed location from the remote location.
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Citations
19 Claims
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1. A method for monitoring an optical fiber between a managed location and a remote location, the method comprising:
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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. - View Dependent Claims (2, 3)
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4. A method for monitoring an optical fiber between a managed location and a remote location, the method comprising:
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sending concurrently, from the managed location, a passively coupled monitoring wavelength signal and a communication wavelength signal between the managed location and the remote location wherein the passively coupled monitoring signal is coupled without requiring power for the coupling; and receiving the passively coupled monitoring wavelength signal at the managed location from the remote location. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A system for monitoring an optical fiber between a managed location and a remote location, comprising:
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an optical fiber placed between a managed location and a remote location; a first optical filter without electrical power to the optical filter for passively separating a monitoring wavelength signal from a communication wavelength signal received concurrently in opposite directions from the managed location at the remote location over the optical fiber; and a second optical filter without electrical power to the optical filter at the remote location for passively coupling the separated monitoring wavelength signal on to the optical fiber at the remote location for sending the separated monitoring wavelength signal to the managed location. - View Dependent Claims (12, 13)
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14. A system for monitoring an optical fiber between a managed location and a remote location, comprising:
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a first optical filter without electrical power for coupling a monitoring wavelength signal on to the optical fiber carrying a communication wavelength signal between the managed location and the remote location; and a second optical filter without electrical power at the managed location for recovering coupled monitoring wavelength signal sent on the optical fiber to the managed location from the remote location wherein the monitoring wavelength signal and the communication wavelength signal are counter propagated in opposite directions over the optical fiber. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification