Patents by Inventor Wim Bogaerts

Wim Bogaerts 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).

  • Patent number: 10105081
    Abstract: A sensor for sensing a substance such as for example glucose. The sensor is implantable in the body of a living creature. The sensor has a photonic integrated circuit, e.g. silicon-photonics integrated circuit, for spectrally processing radiation interacting with the sample. A continuous monitoring system can also include such a sensor.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: October 23, 2018
    Assignee: INDIGO DIABETES NV
    Inventors: Danae Delbeke, Roeland Baets, Wim Bogaerts, Eva Maria Paula Ryckeboer
  • Patent number: 10036625
    Abstract: An integrated waveguide based spectrometer is described. The spectrometer comprises a sensing region for receiving multi-wavelength radiation for irradiating a sample in the sensing region, a wavelength demultiplexing element arranged for capturing said multi-wavelength radiation after interaction with the sample and for providing a number of wavelength demultiplexed radiation outputs or a number of different groups of wavelength demultiplexed radiation outputs, an integrated modulator for differently modulating the different demultiplexed radiation outputs or different groups of demultiplexed radiation outputs, and a multiplexer element for multiplexing the differently modulated demultiplexed radiation outputs or the differently grouped demultiplexed radiation outputs.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: July 31, 2018
    Assignees: UNIVERSITEIT GENT, IMEC VZW
    Inventors: Roeland Baets, Danaë Delbeke, Günther Roelkens, Wim Bogaerts
  • Patent number: 9696478
    Abstract: An optical device is provided for coupling an external optical signal into a plurality of on-chip photonic sub-circuits provided on a substrate. The optical device comprises: a planar waveguide layer on the substrate; a diverging grating coupler configured to couple the external optical signal to the planar waveguide layer and to thereby create an on-chip diverging optical beam in the planar waveguide layer; and a plurality of channel waveguides formed in the waveguide layer. Each channel waveguide of the plurality of channel waveguides comprises a waveguide transition structure having a waveguide aperture oriented towards the diverging grating coupler. For each channel waveguide of the plurality of channel waveguides the position and the width of the corresponding waveguide aperture and the angle and the shape of the waveguide transition structure are individually selected to capture a predetermined portion of the on-chip diverging optical beam.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: July 4, 2017
    Assignees: IMEC VZW, Universiteit Gent
    Inventor: Wim Bogaerts
  • Patent number: 9678370
    Abstract: A carrier-depletion based silicon waveguide resonant cavity modulator includes a silicon waveguide based resonant cavity. The resonant cavity includes an optical modulation section and an optical power monitoring section. The optical power monitoring section includes an integrated lateral PIN diode including a doping compensated I region having a high defect density and a low net free carrier concentration. The doping compensated I region may be formed by performing a P-type implantation step and an N-type implantation step with overlapping ion implantation windows.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: June 13, 2017
    Assignees: IMEC VZW, Universiteit Gent
    Inventors: Yu Hui, Wim Bogaerts
  • Publication number: 20170082421
    Abstract: An integrated waveguide based spectrometer is described. The spectrometer comprises a sensing region for receiving multi-wavelength radiation for irradiating a sample in the sensing region, a wavelength demultiplexing element arranged for capturing said multi-wavelength radiation after interaction with the sample and for providing a number of wavelength demultiplexed radiation outputs or a number of different groups of wavelength demultiplexed radiation outputs, an integrated modulator for differently modulating the different demultiplexed radiation outputs or different groups of demultiplexed radiation outputs, and a multiplexer element for multiplexing the differently modulated demultiplexed radiation outputs or the differently grouped demultiplexed radiation outputs.
    Type: Application
    Filed: April 23, 2015
    Publication date: March 23, 2017
    Inventors: Roeland BAETS, Danaë DELBEKE, Günther ROELKENS, Wim BOGAERTS
  • Publication number: 20170071510
    Abstract: A sensor for sensing a substance such as for example glucose. The sensor is implantable in the body of a living creature. The sensor has a photonic integrated circuit, e.g. silicon-photonics integrated circuit, for spectrally processing radiation interacting with the sample. A continuous monitoring system can also include such a sensor.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Applicants: UNIVERSITEIT GENT, IMEC VZW
    Inventors: Danae DELBEKE, Roel BAETS, Wim BOGAERTS, Eva Maria Paula RYCKEBOER
  • Patent number: 9532738
    Abstract: A sensor is described for sensing a substance such as for example glucose. The sensor is implantable in the body of a living creature. The sensor comprises a photonic integrated circuit, e.g. silicon-photonics, based radiation processor for spectrally processing radiation interacting with the sample. A continuous monitoring system also is described using such a sensor.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: January 3, 2017
    Assignees: UNIVERSITEIT GENT, IMEC VZW
    Inventors: Danaë Delbeke, Roel Baets, Wim Bogaerts, Eva Maria Paula Ryckeboer
  • Publication number: 20160025931
    Abstract: An optical device is provided for coupling an external optical signal into a plurality of on-chip photonic sub-circuits provided on a substrate. The optical device comprises: a planar waveguide layer on the substrate; a diverging grating coupler configured to couple the external optical signal to the planar waveguide layer and to thereby create an on-chip diverging optical beam in the planar waveguide layer; and a plurality of channel waveguides formed in the waveguide layer. Each channel waveguide of the plurality of channel waveguides comprises a waveguide transition structure having a waveguide aperture oriented towards the diverging grating coupler. For each channel waveguide of the plurality of channel waveguides the position and the width of the corresponding waveguide aperture and the angle and the shape of the waveguide transition structure are individually selected to capture a predetermined portion of the on-chip diverging optical beam.
    Type: Application
    Filed: July 24, 2015
    Publication date: January 28, 2016
    Applicants: IMEC VZW, Universiteit Gent
    Inventor: Wim Bogaerts
  • Publication number: 20150316795
    Abstract: A carrier-depletion based silicon waveguide resonant cavity modulator includes a silicon waveguide based resonant cavity. The resonant cavity includes an optical modulation section and an optical power monitoring section. The optical power monitoring section includes an integrated lateral PIN diode including a doping compensated I region having a high defect density and a low net free carrier concentration. The doping compensated I region may be formed by performing a P-type implantation step and an N-type implantation step with overlapping ion implantation windows.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 5, 2015
    Applicants: UNIVERSITEIT GENT, IMEC VZW
    Inventors: Yu Hui, Wim Bogaerts
  • Patent number: 9139786
    Abstract: 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: Grant
    Filed: April 20, 2012
    Date of Patent: September 22, 2015
    Assignees: UNIVERSITEIT GENT, IMEC
    Inventors: Peter Bienstman, Tom Claes, Katrien De Vos, Jan-Willem Hoste, Wim Bogaerts
  • Patent number: 9075251
    Abstract: A photonic device having a wavelength-dependent transmission or filter characteristic, comprising: a Splitter Polarization Rotator (SPR) configured to receive an input wave having a first polarization and outputting a first wave having the first polarization and a second wave having a second polarization different from the first polarization; first and second waveguide arms connected to the SPR configured to propagate the first and second waves respectively; and a Polarization Rotator and Combiner for combining the propagated first and second waves; wherein the dimensions of the first waveguide arm and the second waveguide arm are selected to cancel the influence of an external effect on the wavelength-dependent characteristic. Another aspect of the invention relates to a method for reducing the sensitivity of said integrated photonic device, comprising splitting a polarized light beam, propagating light waves of different through two waveguide arms of specific dimensions, and recombining them.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: July 7, 2015
    Assignees: IMEC, Universiteit Gent
    Inventors: Sarvagya Dwivedi, Wim Bogaerts
  • Patent number: 9068950
    Abstract: 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: Grant
    Filed: October 12, 2011
    Date of Patent: June 30, 2015
    Assignees: UNIVERSITEIT GENT, IMEC VZW
    Inventors: Peter Bienstman, Tom Claes, Wim Bogaerts
  • Publication number: 20140161384
    Abstract: One aspect of the invention relates to a photonic device having a wavelength-dependent transmission or filter characteristic, comprising: a Splitter Polarization Rotator receiving polarized light and providing a first resp. second wave; a first resp. second waveguide arm connected to the SPR for propagating a first resp. second polarization mode (TM, TE) of the first resp. second wave, the second polarization mode being different from the first polarization mode; and a Polarization Rotator and Combiner for combining the propagated first resp. second waves; wherein the dimensions of the first and second arm are selected to cancel the influence of an external effect on the wavelength-dependent characteristic. Another aspect of the invention relates to a method for reducing the sensitivity of said integrated photonic device, comprising splitting a polarized light beam, propagating light waves of different polarity through two waveguide arms of specific dimensions, and recombining them.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicants: UNIVERSITEIT GENT, IMEC
    Inventors: Sarvagya Dwivedi, Wim Bogaerts
  • Patent number: 8741684
    Abstract: Disclosed are methods for co-integration of active and passive photonic devices on a planarized silicon-based photonics substrate. In one aspect, a method is disclosed that includes providing a planarized silicon-based photonics substrate comprising a silicon waveguide structure, depositing a dielectric layer over the planarized silicon-based photonics substrate, selectively etching the dielectric layer, thereby exposing at least a portion of the silicon waveguide structure, selectively etching the exposed portion of the silicon waveguide structure to form a template, using the silicon waveguide structure as a seed layer to selectively grow in the template a germanium layer that extends above the dielectric layer, and planarizing the germanium layer to form a planarized germanium layer, wherein the planarized germanium layer does not extend above the dielectric layer.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: June 3, 2014
    Assignees: IMEC, Universiteit Gent
    Inventors: Wim Bogaerts, Joris Van Campenhout, Peter Verheyen, Philippe Absil
  • Patent number: 8620120
    Abstract: A photonic integrated circuit (410) is described comprising at least one signal processing circuit (110). The signal processing circuit (110) comprises at least one input coupling element (120) for coupling incident light from a predetermined incoupling direction into the photonic integrated circuit (410), and at least one output coupling element (130) for coupling light out of the photonic integrated circuit (410) into an outcoupling direction. The relation between the incoupling direction and the outcoupling direction is different from a relation according to the law of reflection and the incoupling direction and the outcoupling direction are substantially the same. Furthermore, an optical sensor probe (400) comprising such a photonic integrated circuit (410) is disclosed.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: December 31, 2013
    Assignees: IMEC, Universiteit Ghent
    Inventors: Roel Baets, Wim Bogaerts, Katrien De Vos, Stijn Scheerlinck
  • Publication number: 20130094029
    Abstract: 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: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Inventors: Peter BIENSTMAN, Tom CLAES, Wim BOGAERTS
  • Publication number: 20120296604
    Abstract: 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: Application
    Filed: April 20, 2012
    Publication date: November 22, 2012
    Inventors: Peter BIENSTMAN, Tom CLAES, Katrien DE VOS, Jan-Willem HOSTE, Wim BOGAERTS
  • Publication number: 20120288971
    Abstract: Disclosed are methods for co-integration of active and passive photonic devices on a planarized silicon-based photonics substrate. In one aspect, a method is disclosed that includes providing a planarized silicon-based photonics substrate comprising a silicon waveguide structure, depositing a dielectric layer over the planarized silicon-based photonics substrate, selectively etching the dielectric layer, thereby exposing at least a portion of the silicon waveguide structure, selectively etching the exposed portion of the silicon waveguide structure to form a template, using the silicon waveguide structure as a seed layer to selectively grow in the template a germanium layer that extends above the dielectric layer, and planarizing the germanium layer to form a planarized germanium layer, wherein the planarized germanium layer does not extend above the dielectric layer.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 15, 2012
    Applicants: Universiteit Gent, IMEC
    Inventors: Wim Bogaerts, Joris Van Campenhout, Peter Verheyen, Philippe Absil
  • Publication number: 20120226118
    Abstract: A sensor is described for sensing a substance such as for example glucose. The sensor is implantable in the body of a living creature. The sensor comprises a photonic integrated circuit, e.g. silicon-photonics, based radiation processor for spectrally processing radiation interacting with the sample. A continuous monitoring system also is described using such a sensor.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 6, 2012
    Inventors: Danaë DELBEKE, Roel BAETS, Wim BOGAERTS, Eva Maria Paula RYCKEBOER
  • Publication number: 20110116735
    Abstract: A photonic integrated circuit (410) is described comprising at least one signal processing circuit (110). The signal processing circuit (110) comprises at least one input coupling element (120) for coupling incident light from a predetermined incoupling direction into the photonic integrated circuit (410), and at least one output coupling element (130) for coupling light out of the photonic integrated circuit (410) into an outcoupling direction. The relation between the incoupling direction and the outcoupling direction is different from a relation according to the law of reflection and the incoupling direction and the outcoupling direction are substantially the same. Furthermore, an optical sensor probe (400) comprising such a photonic integrated circuit (410) is disclosed.
    Type: Application
    Filed: June 23, 2009
    Publication date: May 19, 2011
    Applicants: IMEC, UNIVERSITEIT GENT
    Inventors: Roel Baets, Wim Bogaerts, Katrien De Vos, Stijn Scheerlinck