Patents Assigned to VIAVI SOLUTIONS FRANCE SAS
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Publication number: 20240060852Abstract: 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.Type: ApplicationFiled: November 3, 2023Publication date: February 22, 2024Applicant: Viavi Solutions France SASInventor: Andre CHAMPAVERE
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Patent number: 11867953Abstract: In some examples, a mechanical transfer ferrule based optical switch may include an optical fiber tube unit connectable to an end of an optical fiber. The optical fiber tube unit may include a lens to transmit light through the optical fiber. An optical fiber tube unit positioning assembly may include an optical fiber tube unit support detachably connectable to the optical fiber tube unit, and an optical fiber tube unit guide to operatively position the optical fiber tube unit support relative to a multi-fiber connector. The optical fiber tube unit guide may align the optical fiber tube unit and the lens to a specified lens of the multi-fiber connector, and connect the optical fiber to a specified optical fiber channel.Type: GrantFiled: December 30, 2021Date of Patent: January 9, 2024Assignee: Viavi Solutions France SASInventors: Olivier Masselin, Alexandre Cebollada
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Patent number: 11846563Abstract: 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.Type: GrantFiled: October 28, 2021Date of Patent: December 19, 2023Assignee: Viavi Solutions France SASInventor: Andre Champavere
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Patent number: 11808660Abstract: In some examples, multiple front-end device based high speed OTDR acquisition may include measuring, in parallel, light transmission with respect to specified optical fibers of a plurality of optical fibers by utilizing a plurality of analog and optic front-end devices. A front-end interlace may be operatively connected to the plurality of analog and optic front-end devices. The front-end interface may convert analog signals received from the specified analog and optic front-end devices to digital signals. A measurement controller may be operatively connected to the front-end interlace to control operation of the plurality of analog and optic front-end devices, and analyze, based on the digital signals, a property of the specified optical fibers.Type: GrantFiled: December 3, 2021Date of Patent: November 7, 2023Assignee: Viavi Solutions France SASInventor: Andre Champavere
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Publication number: 20230324235Abstract: In some examples, optical fiber identification and distance measurement may include utilizing a reflectometer and optical fiber connection device that includes a Rayleigh wavelength pass filter to pass, in one direction, an optical reflectometer signal to an optical fiber. The reflectometer and optical fiber connection device may include a Raman wavelength pass filter to filter out, in another direction, Rayleigh backscattering from the optical reflectometer signal. Further, the Raman wavelength pass filter may pass, in the another direction, a Raman Anti-Stokes signal from the optical fiber.Type: ApplicationFiled: May 31, 2023Publication date: October 12, 2023Applicant: Viavi Solutions France SASInventor: Andre CHAMPAVERE
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Patent number: 11768127Abstract: In some examples, fiber optic virtual sensing may include generating, by a virtual sensor generator that is operatively connected to a device under test (DUT), at least one virtual sensor along the DUT. A DUT interrogator may be operatively connected to the DUT to transmit a stimulus optical signal into the DUT. The DUT interrogator may analyze reflected light resulting from the transmitted stimulus optical signal. The DUT interrogator may determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the at least one virtual sensor.Type: GrantFiled: August 20, 2021Date of Patent: September 26, 2023Assignee: VIAVI SOLUTIONS FRANCE SASInventor: Andre Champavere
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Patent number: 11703397Abstract: In some examples, optical fiber identification and distance measurement may include utilizing a reflectometer and optical fiber connection device that includes a Rayleigh wavelength pass filter to pass, in one direction, an optical reflectometer signal to an optical fiber. The reflectometer and optical fiber connection device may include a Raman wavelength pass filter to filter out, in another direction, Rayleigh backscattering from the optical reflectometer signal. Further, the Raman wavelength pass filter may pass, in the another direction, a Raman Anti-Stokes signal from the optical fiber.Type: GrantFiled: November 21, 2019Date of Patent: July 18, 2023Assignee: Viavi Solutions France SASInventor: Andre Champavere
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Patent number: 11650127Abstract: In some examples, an optical time-domain reflectometer (OTDR) device may include a laser source to emit a plurality of laser beams. Each laser beam may include a different pulse width. A control unit may analyze, for each laser beam, a backscattered signal from a device under test (DUT). The control unit may generate, for each backscattered signal, a trace along the DUT. Further, the control unit may generate, based on an analysis of each trace along the DUT, a combined trace that identifies optical events detected along the DUT.Type: GrantFiled: March 12, 2021Date of Patent: May 16, 2023Assignee: Viavi Solutions France SASInventors: Jean Paul Bonche, Olivier Receveur
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Publication number: 20220128775Abstract: In some examples, a mechanical transfer ferrule based optical switch may include an optical fiber tube unit connectable to an end of an optical fiber. The optical fiber tube unit may include a lens to transmit light through the optical fiber. An optical fiber tube unit positioning assembly may include an optical fiber tube unit support detachably connectable to the optical fiber tube unit, and an optical fiber tube unit guide to operatively position the optical fiber tube unit support relative to a multi-fiber connector. The optical fiber tube unit guide may align the optical fiber tube unit and the lens to a specified lens of the multi-fiber connector, and connect the optical fiber to a specified optical fiber channel.Type: ApplicationFiled: December 30, 2021Publication date: April 28, 2022Applicant: Viavi Solutions France SASInventors: Olivier MASSELIN, Alexandre CEBOLLADA
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Publication number: 20220090984Abstract: In some examples, multiple front-end device based high speed OTDR acquisition may include measuring, in parallel, light transmission with respect to specified optical fibers of a plurality of optical fibers by utilizing a plurality of analog and optic front-end devices. A front-end interlace may be operatively connected to the plurality of analog and optic front-end devices. The front-end interface may convert analog signals received from the specified analog and optic front-end devices to digital signals. A measurement controller may be operatively connected to the front-end interlace to control operation of the plurality of analog and optic front-end devices, and analyze, based on the digital signals, a property of the specified optical fibers.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Applicant: Viavi Solutions France SASInventor: Andre CHAMPAVERE
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Publication number: 20220050013Abstract: 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.Type: ApplicationFiled: October 28, 2021Publication date: February 17, 2022Applicant: Viavi Solutions France SASInventor: Andre CHAMPAVERE
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Patent number: 11243361Abstract: In some examples, a mechanical transfer ferrule based optical switch may include an optical fiber tube unit connectable to an end of an optical fiber. The optical fiber tube unit may include a lens to transmit light through the optical fiber. An optical fiber tube unit positioning assembly may include an optical fiber tube unit support detachably connectable to the optical fiber tube unit, and an optical fiber tube unit guide to operatively position the optical fiber tube unit support relative to a multi-fiber connector. The optical fiber tube unit guide may align the optical fiber tube unit and the lens to a specified lens of the multi-fiber connector, and connect the optical fiber to a specified optical fiber channel.Type: GrantFiled: January 29, 2020Date of Patent: February 8, 2022Assignee: VIAVI SOLUTIONS FRANCE SASInventors: Olivier Masselin, Alexandre Cebollada
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Patent number: 11215528Abstract: In some examples, multiple front-end device based high speed OTDR acquisition may include measuring, in parallel, light transmission with respect to specified optical fibers of a plurality of optical fibers by utilizing a plurality of analog and optic front-end devices. A front-end interface may be operatively connected to the plurality of analog and optic front-end devices. The front-end interface may convert analog signals received from the specified analog and optic front-end devices to digital signals. A measurement controller may be operatively connected to the front-end interface to control operation of the plurality of analog and optic front-end devices, and analyze, based on the digital signals, a property of the specified optical fibers.Type: GrantFiled: December 17, 2019Date of Patent: January 4, 2022Assignee: VIAVI SOLUTIONS FRANCE SASInventor: Andre Champavere
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Publication number: 20210381927Abstract: In some examples, fiber optic virtual sensing may include generating, by a virtual sensor generator that is operatively connected to a device under test (DUT), at least one virtual sensor along the DUT. A DUT interrogator may be operatively connected to the DUT to transmit a stimulus optical signal into the DUT. The DUT interrogator may analyze reflected light resulting from the transmitted stimulus optical signal. The DUT interrogator may determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the at least one virtual sensor.Type: ApplicationFiled: August 20, 2021Publication date: December 9, 2021Applicant: Viavi Solutions France SASInventor: Andre CHAMPAVERE
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Patent number: 11187617Abstract: 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.Type: GrantFiled: April 18, 2019Date of Patent: November 30, 2021Assignee: VIAVI SOLUTIONS FRANCE SASInventor: Andre Champavere
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Patent number: 11125647Abstract: In some examples, fiber optic virtual sensing may include generating, by a virtual sensor generator that is operatively connected to a device under test (DUT), at least one virtual sensor along the DUT. A DUT interrogator may be operatively connected to the DUT to transmit a stimulus optical signal into the DUT. The DUT interrogator may analyze reflected light resulting from the transmitted stimulus optical signal. The DUT interrogator may determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the at least one virtual sensor.Type: GrantFiled: June 24, 2019Date of Patent: September 21, 2021Assignee: VIAVI SOLUTIONS FRANCE SASInventor: Andre Champavere
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Publication number: 20210270696Abstract: In some examples, an optical time-domain reflectometer (OTDR) device may include a laser source to emit a plurality of laser beams. Each laser beam may include a different pulse width. A control unit may analyze, for each laser beam, a backscattered signal from a device under test (DUT). The control unit may generate, for each backscattered signal, a trace along the DUT. Further, the control unit may generate, based on an analysis of each trace along the DUT, a combined trace that identifies optical events detected along the DUT.Type: ApplicationFiled: March 12, 2021Publication date: September 2, 2021Applicant: Viavi Solutions France SASInventors: Jean Paul BONCHE, Olivier RECEVEUR
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Publication number: 20210191052Abstract: In some examples, a mechanical transfer ferrule based optical switch may include an optical fiber tube unit connectable to an end of an optical fiber. The optical fiber tube unit may include a lens to transmit light through the optical fiber. An optical fiber tube unit positioning assembly may include an optical fiber tube unit support detachably connectable to the optical fiber tube unit, and an optical fiber tube unit guide to operatively position the optical fiber tube unit support relative to a multi-fiber connector. The optical fiber tube unit guide may align the optical fiber tube unit and the lens to a specified lens of the multi-fiber connector, and connect the optical fiber to a specified optical fiber channel.Type: ApplicationFiled: January 29, 2020Publication date: June 24, 2021Applicant: Viavi Solutions France SASInventors: Olivier MASSELIN, Alexandre CEBOLLADA
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Publication number: 20210123817Abstract: In some examples, optical fiber identification and distance measurement may include utilizing a reflectometer and optical fiber connection device that includes a Rayleigh wavelength pass filter to pass, in one direction, an optical reflectometer signal to an optical fiber. The reflectometer and optical fiber connection device may include a Raman wavelength pass filter to filter out, in another direction, Rayleigh backscattering from the optical reflectometer signal. Further, the Raman wavelength pass filter may pass, in the another direction, a Raman Anti-Stokes signal from the optical fiber.Type: ApplicationFiled: November 21, 2019Publication date: April 29, 2021Applicant: Viavi Solutions France SASInventor: Andre CHAMPAVERE
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Patent number: 10976218Abstract: In some examples, an optical time-domain reflectometer (OTDR) device may include a laser source to emit a plurality of laser beams. Each laser beam may include a different pulse width. A control unit may analyze, for each laser beam, a backscattered signal from a device under test (DUT). The control unit may generate, for each backscattered signal, a trace along the DUT. Further, the control unit may generate, based on an analysis of each trace along the DUT, a combined trace that identifies optical events detected along the DUT.Type: GrantFiled: February 14, 2020Date of Patent: April 13, 2021Assignee: VIAVI SOLUTIONS FRANCE SASInventors: Jean Paul Bonche, Olivier Receveur