Patents by Inventor Paulette Gavignet
Paulette Gavignet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11800264Abstract: A system for sending data in an optical network comprising a plurality of source nodes and destination nodes is disclosed. In one aspect, a source node generates, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and sends it in the form of single-band data bursts that can be associated with distinct source wavelengths. A single-band data burst comprises, in addition to payload data symbols (PL), a sequence of learning symbols (TS) composed of a plurality of learning symbols. A control unit belonging to the control plane of the optical network determines, for at least one of the source nodes, instants of sending of the single-band data bursts and source wavelengths to be used for sending these single-band data bursts, as a function of a path time of the data bursts between the source node and one of the destination nodes associated with the source wavelength.Type: GrantFiled: February 14, 2019Date of Patent: October 24, 2023Assignee: OrangeInventors: Bing Han, Paulette Gavignet, Erwan Pincemin
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Publication number: 20200413168Abstract: A system for sending data in an optical network comprising a plurality of source nodes and destination nodes is disclosed. In one aspect, a source node generates, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and sends it in the form of single-band data bursts that can be associated with distinct source wavelengths. A single-band data burst comprises, in addition to payload data symbols (PL), a sequence of learning symbols (TS) composed of a plurality of learning symbols. A control unit belonging to the control plane of the optical network determines, for at least one of the source nodes, instants of sending of the single-band data bursts and source wavelengths to be used for sending these single-band data bursts, as a function of a path time of the data bursts between the source node and one of the destination nodes associated with the source wavelength.Type: ApplicationFiled: February 14, 2019Publication date: December 31, 2020Inventors: Bing Han, Paulette Gavignet, Erwan Pincemin
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Patent number: 10541775Abstract: The invention relates to a system for sending data in an optical network comprising source nodes (1-1, 1-2, 1-3, 1-4, 1-5), each capable of generating, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and of sending this signal in the form of single-band data bursts (11-13, 21-23, 31-33, 41-43, 51-53) that can be associated with distinct source wavelengths, and a combiner (1,2) for combining single-band data bursts, sent by the source nodes in the spectral bands that are associated with them, into multi-band data bursts (61-63, 71-73) occupying a spectral band corresponding to a juxtaposition of the spectral bands associated with the source nodes. In this system, a unit for controlling an instant of sending of said single-band data bursts by the source nodes, implements a control plane taking account of a path time of the single-band data bursts sent by the source nodes to the combiner.Type: GrantFiled: July 25, 2015Date of Patent: January 21, 2020Assignee: ORANGEInventors: Paulette Gavignet, Erwan Pincemin, Esther Le Rouzic
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Patent number: 10396901Abstract: A coherent optical receiver capable of receiving a multiple-wavelength optical signal comprising a series of single-band optical bursts is described. Each single-band optical burst is carried by one wavelength from among a plurality of wavelengths on a predetermined spectral band. The optical receiver can include optical generation means arranged to generate a local multiple-wavelength optical oscillator consisting of a plurality of optical lines at wavelengths corresponding to the wavelengths of the optical bursts, optical mixing means arranged to mix the optical oscillator and the optical signal in order to generate at least one mixed optical signal comprising a plurality of beats between at least one of the single-band optical bursts and the optical lines of the local multiple-wavelength optical oscillator, and a detection means to filter at least one beat between said single-band optical burst and one of the optical lines of the local multiple-wavelength optical oscillator.Type: GrantFiled: August 1, 2016Date of Patent: August 27, 2019Assignee: ORANGEInventors: Bing Han, Mengdi Song, Paulette Gavignet, Erwan Pincemin
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Patent number: 10361785Abstract: One embodiment relates to a method for transmitting data via an optical network comprising a plurality of optical nodes, in which at least one wavelength is dedicated to the transmission, in the network, of data bursts transmitted by at least one source node and wherein the data bursts are intended for an addressee node. The method may comprise transmitting a control message from the addressee node to the at least one source node wherein the control message is conveyed in an optical signal emitted according to the wavelength dedicated to the transmission, in the network, of data bursts intended for the addressee node.Type: GrantFiled: September 19, 2014Date of Patent: July 23, 2019Assignee: OrangeInventors: Sébastien Jobert, Ahmed Triki, Paulette Gavignet, Bernard Arzur, Esther Le Rouzic
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Publication number: 20180227058Abstract: A coherent optical receiver capable of receiving a multiple-wavelength optical signal comprising a series of single-band optical bursts is described. Each single-band optical burst is carried by one wavelength from among a plurality of wavelengths on a predetermined spectral band. The optical receiver can include optical generation means arranged to generate a local multiple-wavelength optical oscillator consisting of a plurality of optical lines at wavelengths corresponding to the wavelengths of the optical bursts, optical mixing means arranged to mix the optical oscillator and the optical signal in order to generate at least one mixed optical signal comprising a plurality of beats between at least one of the single-band optical bursts and the optical lines of the local multiple-wavelength optical oscillator, and a detection means to filter at least one beat between said single-band optical burst and one of the optical lines of the local multiple-wavelength optical oscillator.Type: ApplicationFiled: August 1, 2016Publication date: August 9, 2018Inventors: Bing Han, Mengdi Song, Paulette Gavignet, Erwan Pincemin
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Publication number: 20170230134Abstract: The invention relates to a system for sending data in an optical network comprising source nodes (1-1, 1-2, 1-3, 1-4, 1-5), each capable of generating, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and of sending this signal in the form of single-band data bursts (11-13, 21-23, 31-33, 41-43, 51-53) that can be associated with distinct source wavelengths, and a combiner (1,2) for combining single-band data bursts, sent by the source nodes in the spectral bands that are associated with them, into multi-band data bursts (61-63, 71-73) occupying a spectral band corresponding to a juxtaposition of the spectral bands associated with the source nodes. In this system, a unit for controlling an instant of sending of said single-band data bursts by the source nodes, implements a control plane taking account of a path time of the single-band data bursts sent by the source nodes to the combiner.Type: ApplicationFiled: July 25, 2015Publication date: August 10, 2017Inventors: Paulette Gavignet, Erwan Pincemin, Esther Le Rouzic
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Publication number: 20160226590Abstract: One embodiment relates to a method for transmitting data via an optical network comprising a plurality of optical nodes, in which at least one wavelength is dedicated to the transmission, in the network, of data bursts transmitted by at least one source node and wherein the data bursts are intended for an addressee node. The method may comprise transmitting a control message from the addressee node to the at least one source node wherein the control message is conveyed in an optical signal emitted according to the wavelength dedicated to the transmission, in the network, of data bursts intended for the addressee node.Type: ApplicationFiled: September 19, 2014Publication date: August 4, 2016Inventors: Sebastien Jobert, Ahmed Triki, Paulette Gavignet, Bernard Arzur, Esther Le Rouzic
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Patent number: 9172466Abstract: A method and apparatus for switching an optical data stream via an optical network node, capable of switching optical data received at input ports to output ports. The method includes the following steps performed by a processing chain upon detection of a stream at a given wavelength by a given input port: determining a resource of the node based on a predetermined routing policy such that, for a given wavelength common to source and destination nodes of the stream, routing within the network is carried out according to a routing tree covering the network, a root of the tree being the destination node; consulting an occupancy table for the resource, indicating if at least one possible preceding stream is using the resource; determining a delay to be applied by the processing chain to prevent a collision between the stream and the possible preceding stream; and configuring the processing chain to apply the delay.Type: GrantFiled: July 25, 2011Date of Patent: October 27, 2015Assignee: FRANCE TELECOMInventors: Esther Le Rouzic, Paulette Gavignet
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Patent number: 9020357Abstract: A method of calculating a series of control parameters to be applied to a polarization controller arranged so as to compensate for the modal dispersion of polarization affecting an optical signal passing through an optical link by calculating a plurality of polarization states of which the respective representations on a Poincaré sphere are separated from one another by a distance greater than a minimum distance dependent on an acceptable threshold of bit error ratios and, for each state of polarization thus calculated, associating at least one control parameter to be applied to the polarization controller with the calculated state of polarization.Type: GrantFiled: October 6, 2011Date of Patent: April 28, 2015Assignee: OrangeInventors: Abdul Rahman El Falou, Paulette Gavignet, Erwan Pincemin
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Publication number: 20130195445Abstract: A method of calculating a series of control parameters to be applied to a polarization controller arranged so as to compensate for the modal dispersion of polarization affecting an optical signal passing through an optical link by calculating a plurality of polarization states of which the respective representations on a Poincaré sphere are separated from one another by a distance greater than a minimum distance dependent on an acceptable threshold of bit error ratios and, for each state of polarization thus calculated, associating at least one control parameter to be applied to the polarization controller with the calculated state of polarization.Type: ApplicationFiled: October 6, 2011Publication date: August 1, 2013Applicant: FRANCE TELECOMInventors: Abdul Rahman El Falou, Paulette Gavignet, Erwan Pincemin
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Publication number: 20130148964Abstract: A method and apparatus for switching an optical data stream via an optical network node, capable of switching optical data received at input ports to output ports. The method includes the following steps performed by a processing chain upon detection of a stream at a given wavelength by a given input port: determining a resource of the node based on a predetermined routing policy such that, for a given wavelength common to source and destination nodes of the stream, routing within the network is carried out according to a routing tree covering the network, a root of the tree being the destination node; consulting an occupancy table for the resource, indicating if at least one possible preceding stream is using the resource; determining a delay to be applied by the processing chain to prevent a collision between the stream and the possible preceding stream; and configuring the processing chain to apply the delay.Type: ApplicationFiled: July 25, 2011Publication date: June 13, 2013Applicant: FRANCE TELECOMInventors: Esther Le Rouzic, Paulette Gavignet
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Patent number: 8280246Abstract: The differential group delay is measured in an optical fiber connection for an optical signal undergoing a phase modulation BPSK or DPSK by a digital signal at a given rate. A polarization controller at an emerging end of the connection scans polarization states of the modulated optical signal. An emulator iteratively introduces an additional delay in the modulated optical signal emerging from the connection and combines the delayed modulated optical signal and the non delayed modulated optical signal which are both polarized along two orthogonal axes into a resulting optical signal. A polarization controller and a fixed polarizer select a polarization state in the resulting optical signal along one of bisecting lines of the orthogonal axes into a linearly polarized signal. An eye diagram or a spectrum of the polarized signal is acquired by a digital oscilloscope or an optical spectrum analyzer to determine the differential group delay.Type: GrantFiled: November 25, 2009Date of Patent: October 2, 2012Assignee: France TelecomInventors: Erwan Pincemin, Daniel Hui Bon Hoa, Paulette Gavignet, Christian Dourthe
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Publication number: 20100135654Abstract: The differential group delay is measured in an optical fiber connection for an optical signal undergoing a phase modulation BPSK or DPSK by a digital signal at a given rate. A polarization controller at an emerging end of the connection scans polarization states of the modulated optical signal. An emulator iteratively introduces an additional delay in the modulated optical signal emerging from the connection and combines the delayed modulated optical signal and the non delayed modulated optical signal which are both polarized along two orthogonal axes into a resulting optical signal. A polarization controller and a fixed polarizer select a polarization state in the resulting optical signal along one of bisecting lines of the orthogonal axes into a linearly polarized signal. An eye diagram or a spectrum of the polarized signal is acquired by a digital oscilloscope or an optical spectrum analyzer to determine the differential group delay.Type: ApplicationFiled: November 25, 2009Publication date: June 3, 2010Applicant: FRANCE TELECOMInventors: Erwan Pincemin, Daniel Hui Bon Hoa, Paulette Gavignet, Christian Dourthe
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Patent number: 7697123Abstract: Apparatus for measuring the differential group delay ?1 in an optical fiber connection. The apparatus comprises at the inlet to said connection, a generator (10) for generating a binary signal sequence at a data rate D and a first polarization controller (30) suitable for subjecting the binary signal of an incoming sequence to a first scan through polarization states; and at the outlet from the connection, a second polarization controller (60) suitable for subjecting the signal resulting from the outgoing sequence to a second scan through polarization states, independently of said first polarization scan, a differential group delay emulator (70) suitable for introducing a variable additional group delay ?2, and an analyzer device (90) suitable for detecting the equality ?1+?2=1/D in the resulting signal sequence.Type: GrantFiled: December 15, 2006Date of Patent: April 13, 2010Assignee: France TelecomInventors: Daniel Hui Bon Hoa, Paulette Gavignet, Christian Dourthe
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Publication number: 20090066937Abstract: Apparatus for measuring the differential group delay ?1 in an optical fiber connection. The apparatus comprises at the inlet to said connection, a generator (10) for generating a binary signal sequence at a data rate D and a first polarization controller (30) suitable for subjecting the binary signal of an incoming sequence to a first scan through polarization states; and at the outlet from the connection, a second polarization controller (60) suitable for subjecting the signal resulting from the outgoing sequence to a second scan through polarization states, independently of said first polarization scan, a differential group delay emulator (70) suitable for introducing a variable additional group delay ?2, and an analyzer device (90) suitable for detecting the equality ?1+?2=1/D in the resulting signal sequence.Type: ApplicationFiled: December 15, 2006Publication date: March 12, 2009Applicant: FRANCE TELECOMInventors: Daniel Hui Bon Hoa, Paulette Gavignet, Christian Dourthe