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US 12,270,723 B2Granted
Fiber optic cable location system and method
AssigneeViavi Solutions Inc.
InventorAndre Champavere
Life of this patent
Estimating the term…
Abstract
In some examples, fiber optic cable location may include transmitting a coherent laser pulse into a device under test (DUT). Based on an analysis of reflected light resulting from the transmitted coherent laser pulse, changes in intensity of the reflected light caused by a plurality of signals directed towards the DUT may be determined. Further, based on the changes in intensity of the reflected light, a location of the DUT may be determined.
Claims20
A fiber optic cable location system, comprising:
- a mobile signal generator configured to:
- generate a plurality of vibrational signals directed towards an area where a location of a section of a fiber optic cable is to be determined;
- receive an indication of noise variation over time of intensity of reflected light resulting from a coherent laser pulse transmitted into the fiber optic cable and caused by the generated plurality of vibrational signals directed towards the area where the location of the section of the fiber optic cable is to be determined,
- wherein the noise variation over time is determined based on a sampling of the reflected light at a sampling frequency, and the sampling frequency depends on a length of the fiber optic cable;
- and
- determine, based on the indication of noise variation over time of intensity of reflected light, the location of the section of the fiber optic cable to be determined.
3 more elements
A fiber optic cable location determination method, comprising:
- generating a plurality of vibrational signals directed towards an area where a location of a section of a fiber optic cable is to be determined;
- receiving an indication of noise variation over time of intensity of reflected light resulting from a coherent laser pulse transmitted into the fiber optic cable and caused by the generated plurality of vibrational signals directed towards the area where the location of the section of the fiber optic cable is to be determined,
- wherein the noise variation over time is determined based on a sampling of the reflected light at a sampling frequency and the sampling frequency depends on a length of the fiber optic cable;
- and
- determining, based on the indication of noise variation over time of intensity of reflected light, the location of the section of the fiber optic cable to be determined.
2 more elements
A system, comprising:
- a signal analyzer configured to:
- transmit a coherent laser pulse into a device under test (DUT) disposed under soil;
- receive, from the DUT, reflected light resulting from the transmitted coherent laser pulse;
- determine, based on an analysis of the reflected light, changes in intensity of reflected light caused by a plurality of vibrational signals directed towards an area where a location of a section of the DUT is to be determined;
- and
- transmit the determined changes in intensity of reflected light;
- and
- a mobile signal generator configured to:
- generate the plurality of vibrational signals directed towards the area where the location of the section of the DUT is to be determined, wherein the mobile signal generator changes a frequency of the generated plurality of vibrational signals based on one or more soil characteristics of the soil;
- receive the determined changes in intensity of reflected light from the signal analyzer;
- and
- determine, based on the received determined changes in intensity of reflected light, the location of the section of the DUT.
9 more elements
Dependencies are inferred from the claim text.