Dual wavelength optical time domain reflectometer systems and methods embedded in a WDM system
First Claim
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1. A method using a bi-directional Optical Time Domain Reflectometer (OTDR) to monitor a fiber optic communication system comprising a first node and a second node, the method comprising:
- performing a first OTDR measurement at a first OTDR wavelength at the first node on a first fiber;
performing a second OTDR measurement at a second OTDR wavelength at the second node on the first fiber;
performing a third OTDR measurement at a third OTDR wavelength at the first node on a second fiber;
performing a fourth OTDR measurement at a fourth OTDR wavelength at the second node on the second fiber, wherein the first node and the second node are bi-directionally coupled via the fiber optic communication system over the first fiber and the second fiber; and
utilizing the first OTDR measurement and the second OTDR measurement for event detection on the first fiber.
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Abstract
Systems and methods using a bi-directional Optical Time Domain Reflectometer (OTDR) to monitor a fiber optic communication system including a first node and a second node. The systems and methods include performing a first OTDR measurement at a first OTDR wavelength at the first node on a first fiber; performing a second OTDR measurement at a second OTDR wavelength at the second node on the first fiber; and utilizing the first OTDR measurement and the second OTDR measurement for event detection on the first fiber.
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Citations
20 Claims
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1. A method using a bi-directional Optical Time Domain Reflectometer (OTDR) to monitor a fiber optic communication system comprising a first node and a second node, the method comprising:
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performing a first OTDR measurement at a first OTDR wavelength at the first node on a first fiber; performing a second OTDR measurement at a second OTDR wavelength at the second node on the first fiber; performing a third OTDR measurement at a third OTDR wavelength at the first node on a second fiber; performing a fourth OTDR measurement at a fourth OTDR wavelength at the second node on the second fiber, wherein the first node and the second node are bi-directionally coupled via the fiber optic communication system over the first fiber and the second fiber; and utilizing the first OTDR measurement and the second OTDR measurement for event detection on the first fiber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 20)
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9. A system utilizing a bi-directional Optical Time Domain Reflectometer (OTDR) to monitor a fiber optic communication system comprising a first node and a second node, the system comprising:
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a network interface communicatively coupled to the fiber optic communication system; a processor communicatively coupled to the network interface; and memory storing instructions that, when executed, cause the processor to cause performance a first OTDR measurement at a first OTDR wavelength at the first node on a first fiber, cause performance of a second OTDR measurement at a second OTDR wavelength at the second node on the first fiber, cause performance of a third OTDR measurement at a third OTDR wavelength at the first node on a second fiber, cause performance of a fourth OTDR measurement at a fourth OTDR wavelength at the second node on the second fiber, wherein the first node and the second node are bi-directionally coupled via the fiber optic communication system over the first fiber and the second fiber, and utilize the first OTDR measurement and the second OTDR measurement for event detection on the first fiber. - View Dependent Claims (10, 11, 12, 13, 14, 15, 19)
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16. A fiber optical communication system with a bi-directional Optical Time Domain Reflectometer (OTDR) for monitoring, the fiber optical communication system comprising:
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a first node with a first OTDR measurement system configured to perform a first OTDR measurement at a first OTDR wavelength on a first fiber; a second node connected to the first node via the first fiber and with a second OTDR measurement system configured to perform a second OTDR measurement at a second OTDR wavelength on the first fiber; a processor configured to utilize the first OTDR measurement and the second OTDR measurement for event detection on the first fiber wherein the first OTDR measurement system is further configured to perform a third OTDR measurement at a third OTDR wavelength on a second fiber, and wherein the second OTDR measurement system is further configured to perform a fourth OTDR measurement at a fourth OTDR wavelength on the second fiber, wherein the first node and the second node are bi-directionally coupled via the fiber optic communication system over the first fiber and the second fiber. - View Dependent Claims (17, 18)
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Specification