Patents by Inventor Peter Bienstman
Peter Bienstman 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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Publication number: 20240014906Abstract: A computer-implemented method of training a self-coherent detector module to recover distorted optical transmission signals, and processing devices adapted to perform the method are disclosed. The detector module comprises an optical filter unit, a detection unit for detecting an amplitude component of an optical input, and digital signal processing circuitry configured to retrieve a phase component of the optical input from the amplitude component. The method comprises iteratively computing updates of adjustable filter coefficients of the filter unit, based on a received first dataset, and replacing training signals of the first dataset, taking the updated filter coefficients into account. An initial set of filter coefficients is pre-trained on a received second dataset. Training signals of the first and second dataset comprise distorted optical transmission signals that are subjected to filtering by the filter unit.Type: ApplicationFiled: July 7, 2023Publication date: January 11, 2024Inventors: Peter BIENSTMAN, Sarah MASAAD
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Patent number: 11681201Abstract: A photonics reservoir computing system is described. The system is configured for propagating at least one optical signal so as to create resulting radiation signals in the output channels. The photonics reservoir computing system further comprises weighting elements for weighting signals from the output channels, and at least one optical detector for optically detecting signals from the output channels. The system is adapted for estimating signals from the output channels through an output of the optical detector.Type: GrantFiled: May 26, 2018Date of Patent: June 20, 2023Assignees: UNIVERSITEIT GENT, IMEC VZWInventors: Peter Bienstman, Andrew Katumba, Jelle Heyvaert, Joni Dambre, Matthias Freiberger
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Patent number: 11650479Abstract: A passive photonics reservoir computing system comprises an optical waveguide based structure comprising a plurality of discrete nodes and a plurality of passive waveguide interconnections between the nodes for propagating the at least one photonic signal between the nodes, in which each discrete node is adapted for passively relaying the at least one photonic wave over the passive waveguide interconnections connected thereto, wherein the optical waveguide based structure comprises at least one multimode Y-junction configured for connecting three waveguides using a taper section wherein the taper section is not perfectly adiabatic. A training scheme uses a passive photonics computing system.Type: GrantFiled: May 26, 2018Date of Patent: May 16, 2023Assignee: IMEC VZWInventors: Peter Bienstman, Andrew Katumba, Jelle Heyvaert, Joni Dambre
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Patent number: 11475683Abstract: An object classification system for classifying objects is described. The system comprises an imaging region adapted for irradiating an object of interest, an arrayed detector, and a mixing unit configured for mixing the irradiation stemming from the object of interest by reflecting or scattering on average at least three times the irradiation after its interaction with the object of interest and prior to said detection.Type: GrantFiled: May 26, 2018Date of Patent: October 18, 2022Assignees: UNIVERSITEIT GENT, IMEC VZWInventors: Peter Bienstman, Alessio Lugnan, Floris Laporte
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Publication number: 20200410370Abstract: A photonics reservoir computing system is described. The system is configured for propagating at least one optical signal so as to create resulting radiation signals in the output channels. The photonics reservoir computing system further comprises weighting elements for weighting signals from the output channels, and at least one optical detector for optically detecting signals from the output channels. The system is adapted for estimating signals from the output channels through an output of the optical detector.Type: ApplicationFiled: May 26, 2018Publication date: December 31, 2020Inventors: Peter BIENSTMAN, Andrew KATUMBA, Jelle HEYVAERT, Joni DAMBRE, Matthias FREIBERGER
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Publication number: 20200249543Abstract: A passive photonics reservoir computing system comprises an optical waveguide based structure comprising a plurality of discrete nodes and a plurality of passive waveguide interconnections between the nodes for propagating the at least one photonic signal between the nodes, in which each discrete node is adapted for passively relaying the at least one photonic wave over the passive waveguide interconnections connected thereto, wherein the optical waveguide based structure comprises at least one multimode Y-junction configured for connecting three waveguides using a taper section wherein the taper section is not perfectly adiabatic. A training scheme uses a passive photonics computing system.Type: ApplicationFiled: May 26, 2018Publication date: August 6, 2020Inventors: Peter BIENSTMAN, Andrew KATUMBA, Jelle HEYVAERT, Joni DAMBRE
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Publication number: 20200225153Abstract: A passive photonics wave-based computing system configured for performing wave-based computing, the system comprising a mixing unit comprising a plurality of inputs and a plurality of outputs the mixing unit being a cavity and further being configured for reflecting or scattering, on average at least three times in the cavity, an optical beam received via said at least one input towards at least one of said plurality of outputs.Type: ApplicationFiled: May 26, 2018Publication date: July 16, 2020Inventors: Peter BIENSTMAN, Floris LAPORTE, Alessio LUGNAN
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Publication number: 20200125826Abstract: An object classification system for classifying objects is described. The system comprises an imaging region adapted for irradiating an object of interest, an arrayed detector, and a mixing unit configured for mixing the irradiation stemming from the object of interest by reflecting or scattering on average at least three times the irradiation after its interaction with the object of interest and prior to said detection.Type: ApplicationFiled: May 26, 2018Publication date: April 23, 2020Inventors: Peter BIENSTMAN, Alessio LUGNAN, Floris LAPORTE
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Patent number: 10295451Abstract: A device for extracting at least one object characteristic of an object (106) is presented, the device comprising: a light sensor (101) for recording a hologram of an object and a processing unit (102) coupled to the light sensor and configured for extracting at least one object characteristic from the hologram; wherein the processing unit is configured for extracting the at least one object characteristic from a section of the hologram without reconstructing an image representation of the object. Further, a device (200) for sorting an object (106), a method for identifying an object and a method for sorting objects is presented.Type: GrantFiled: June 28, 2016Date of Patent: May 21, 2019Assignees: IMEC VZW, UNIVERSITEIT GENTInventors: Bendix Schneider, Peter Bienstman, Joni Dambre, Geert Vanmeerbeeck, Liesbet Lagae
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Patent number: 10082624Abstract: A photonics integrated device for coupling radiation using flood illumination is disclosed. The photonic integrated device comprises an integrated waveguide, a coupler grating at the surface of the device for coupling radiation from said flood illumination towards the integrated waveguide, and a grating for blocking, reflecting or redirecting radiation away from the coupler grating at the surface of the device. The grating for blocking, reflecting or redirecting radiation away from the coupler grating thereby is positioned relative to the coupler grating so as to prevent at least some radiation from said flood illumination, impinging at the grating for blocking, reflecting or redirecting radiation away from the coupler grating and thus impinging at a position of said surface away from the coupling grating, from being reflected within the device towards the coupler grating.Type: GrantFiled: January 29, 2015Date of Patent: September 25, 2018Assignees: UNIVERSITEIT GENT, IMEC VZWInventors: Peter Bienstman, Sam Werquin
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Publication number: 20180195945Abstract: A device for extracting at least one object characteristic of an object (106) is presented, the device comprising: a light sensor (101) for recording a hologram of an object and a processing unit (102) coupled to the light sensor and configured for extracting at least one object characteristic from the hologram; wherein the processing unit is configured for extracting the at least one object characteristic from a section of the hologram without reconstructing an image representation of the object. Further, a device (200) for sorting an object (106), a method for identifying an object and a method for sorting objects is presented.Type: ApplicationFiled: June 28, 2016Publication date: July 12, 2018Applicants: IMEC VZW, Universiteit GentInventors: Bendix Schneider, Peter Bienstman, Joni Dambre, Geert Vanmeerbeeck, Liesbet Lagae
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Patent number: 9671335Abstract: A photonics integrated system is disclosed, comprising a substrate, an integrated interferometer integrated in the substrate and being configured for receiving radiation from a radiation source, and an integrated spectral filter integrated in the substrate and being configured for receiving radiation from the interferometer. The integrated interferometer has a period and the integrated spectral filter has a bandwidth such that the period of the integrated interferometer is smaller than the bandwidth of the integrated spectral filter. The integrated spectral filter has a periodic transfer characteristic with a period and the system has a bandwidth such that the period of the periodic transfer characteristic of the integrated spectral filter is larger than the bandwidth of the system.Type: GrantFiled: December 20, 2013Date of Patent: June 6, 2017Assignees: UNIVERSITEIT GENT, IMEC VZWInventors: Peter Bienstman, Tom Claes
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Publication number: 20160341895Abstract: A photonics integrated device for coupling radiation using flood illumination is disclosed. The photonic integrated device comprises an integrated waveguide, a coupler grating at the surface of the device for coupling radiation from said flood illumination towards the integrated waveguide, and a grating for blocking, reflecting or redirecting radiation away from the coupler grating at the surface of the device. The grating for blocking, reflecting or redirecting radiation away from the coupler grating thereby is positioned relative to the coupler grating so as to prevent at least some radiation from said flood illumination, impinging at the grating for blocking, reflecting or redirecting radiation away from the coupler grating and thus impinging at a position of said surface away from the coupling grating, from being reflected within the device towards the coupler grating.Type: ApplicationFiled: January 29, 2015Publication date: November 24, 2016Inventors: Peter BIENSTMAN, Sam WERQUIN
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Patent number: 9477136Abstract: A method comprising providing an input signal to at least one input node of a computing reservoir by temporally encoding the input signal by modulating the at least one photonic wave as function of the input signal is described. The method further comprises propagating the at least one photonic wave via passive guided or unguided propagation between discrete nodes of the computing reservoir, in which each discrete node is adapted for passively relaying the at least one photonic wave over the passive interconnections connected thereto. The method also comprises obtaining a plurality of readout signals, in which each readout signal is determined by a non-linear relation to the at least one photonic wave in at least one readout node of the computing reservoir, and combining this plurality of readout signals into an output signal by taking into account a plurality of training parameters.Type: GrantFiled: July 7, 2014Date of Patent: October 25, 2016Assignees: UNIVERSITEIT GENT, IMEC VCWInventors: Peter Bienstman, Joni Dambre, Kristof Vandoorne
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Patent number: 9139786Abstract: A sensing device for sensing a substance includes a photonics integrated circuit having a resonator element that supports two different radiation modes, e.g. radiation modes of different polarisation, at a predetermined resonance wavelength. The resonator element is configured to convert a phase change or amplitude change experienced by the two different radiation modes upon formation of a layer of receptor molecules onto a sensing surface of the device into a resonance wavelength shift for the two different radiation modes. The sensing device also includes a detection unit arranged to detect the resonance wavelength shift for the two different radiation modes. The detection unit includes a processor that is configured to derive from the detected resonance wavelength shifts for the two different radiation modes, a layer thickness and refractive index of the layer of receptor molecules.Type: GrantFiled: April 20, 2012Date of Patent: September 22, 2015Assignees: UNIVERSITEIT GENT, IMECInventors: Peter Bienstman, Tom Claes, Katrien De Vos, Jan-Willem Hoste, Wim Bogaerts
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Patent number: 9068950Abstract: Quantifying a refractive index of a test medium by obtaining spectral data representative for an optical signal being modulated with an optical transfer characteristics of a photonic sensor, the modulation being obtained by combining modulation of a first electromagnetic wave component in an optical filter element with a first periodic transfer spectrum having a first free spectral range and modulation of a second electromagnetic wave component in an optical filter element with a second periodic transfer spectrum having a second free spectral range being different from the first free spectral range. A relative is change induced in the second periodic transfer spectrum by bringing the test medium in proximity with the optical filter element with the second periodic transfer spectrum. The refractive index of the test medium is quantified by determining a wavelength offset of an envelope signal in said spectral data.Type: GrantFiled: October 12, 2011Date of Patent: June 30, 2015Assignees: UNIVERSITEIT GENT, IMEC VZWInventors: Peter Bienstman, Tom Claes, Wim Bogaerts
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Publication number: 20150009548Abstract: A method comprising providing an input signal to at least one input node of a computing reservoir by temporally encoding the input signal by modulating the at least one photonic wave as function of the input signal is described. The method further comprises propagating the at least one photonic wave via passive guided or unguided propagation between discrete nodes of the computing reservoir, in which each discrete node is adapted for passively relaying the at least one photonic wave over the passive interconnections connected thereto. The method also comprises obtaining a plurality of readout signals, in which each readout signal is determined by a non-linear relation to the at least one photonic wave in at least one readout node of the computing reservoir, and combining this plurality of readout signals into an output signal by taking into account a plurality of training parameters.Type: ApplicationFiled: July 7, 2014Publication date: January 8, 2015Inventors: Peter BIENSTMAN, Joni DAMBRE, Kristof VANDOORNE
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Publication number: 20140176957Abstract: A photonics integrated system is disclosed, comprising a substrate, an integrated interferometer integrated in the substrate and being configured for receiving radiation from a radiation source, and an integrated spectral filter integrated in the substrate and being configured for receiving radiation from the interferometer. The integrated interferometer has a period and the integrated spectral filter has a bandwidth such that the period of the integrated interferometer is smaller than the bandwidth of the integrated spectral filter. The integrated spectral filter has a periodic transfer characteristic with a period and the system has a bandwidth such that the period of the periodic transfer characteristic of the integrated spectral filter is larger than the bandwidth of the system.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicants: IMEC, UNIVERSITEIT GENTInventors: Peter BIENSTMAN, Tom CLAES
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Publication number: 20130094029Abstract: Quantifying a refractive index of a test medium by obtaining spectral data representative for an optical signal being modulated with an optical transfer characteristics of a photonic sensor, the modulation being obtained by combining modulation of a first electromagnetic wave component in an optical filter element with a first periodic transfer spectrum having a first free spectral range and modulation of a second electromagnetic wave component in an optical filter element with a second periodic transfer spectrum having a second free spectral range being different from the first free spectral range. A relative is change induced in the second periodic transfer spectrum by bringing the test medium in proximity with the optical filter element with the second periodic transfer spectrum. The refractive index of the test medium is quantified by determining a wavelength offset of an envelope signal in said spectral data.Type: ApplicationFiled: October 12, 2011Publication date: April 18, 2013Inventors: Peter BIENSTMAN, Tom CLAES, Wim BOGAERTS
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Publication number: 20120296604Abstract: A sensing device for sensing a substance includes a photonics integrated circuit having a resonator element that supports two different radiation modes, e.g. radiation modes of different polarisation, at a predetermined resonance wavelength. The resonator element is configured to convert a phase change or amplitude change experienced by the two different radiation modes upon formation of a layer of receptor molecules onto a sensing surface of the device into a resonance wavelength shift for the two different radiation modes. The sensing device also includes a detection unit arranged to detect the resonance wavelength shift for the two different radiation modes. The detection unit includes a processor that is configured to derive from the detected resonance wavelength shifts for the two different radiation modes, a layer thickness and refractive index of the layer of receptor molecules.Type: ApplicationFiled: April 20, 2012Publication date: November 22, 2012Inventors: Peter BIENSTMAN, Tom CLAES, Katrien DE VOS, Jan-Willem HOSTE, Wim BOGAERTS