Patents by Inventor Peter Johan Harmsma

Peter Johan Harmsma 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: 12313921
    Abstract: The photonic integrated device comprises a substrate, a plurality of mechanical resonator structures on a surface of the substrate, exposed to receive sound waves from outside the device; a plurality of sensing optical waveguides, each sensing optical waveguide at least partly mechanically coupled to at least one of the mechanical resonator structures, or a sensing optical waveguide that is at least partly mechanically coupled to all of the mechanical resonator structures; an input optical waveguide on the surface of the substrate, coupled to the plurality of sensing optical waveguides or the single sensing optical waveguide, for supplying light to the plurality of sensing optical waveguides or the single sensing optical waveguide; at least one output optical waveguide on the surface of the substrate, coupled to the plurality of sensing optical waveguides or the single sensing optical waveguide, for collecting light from the plurality of sensing optical waveguides or the single sensing optical waveguide that
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: May 27, 2025
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Maurits Sebastiaan Van Der Heiden, Paul Louis Maria Joseph Van Neer, Peter Johan Harmsma, Robert Karl Altmann, Daniele Piras
  • Patent number: 12092939
    Abstract: The spin-entangled photon emission device comprises a Fabry-Pérot resonator with a solid state optical waveguide integrated on a substrate. Preferably, the device is used in a configuration that makes it possible to tune the resonance wavelength of the Fabry-Pérot resonator by straining or otherwise adjusting the effective optical length of the waveguide. A diamond membrane is located in the Fabry-Pérot resonator. The diamond membrane comprises a photon-source capable of emitting a photon that is entangled with a spin state of the photon source. A first surface of the diamond membrane abuts to a first mirror of the Fabry-Pérot resonator. The optical waveguide has a first end facet bonded to a first surface of the diamond membrane. The first mirror of the Fabry-Pérot resonator is formed by a reflector on the second surface of the diamond membrane. The second mirror of the Fabry-Pérot resonator is formed by a reflector on a second end facet of the optical waveguide or inside the optical waveguide.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: September 17, 2024
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Anna Tchebotareva, Peter Johan Harmsma
  • Patent number: 11982851
    Abstract: In a method or system for interrogating an optical chip (50), the optical chip (50) is illuminated with input light (30) and a spatially resolved image (50i) of the output light (31,32) is measured from the optical chip (50). The output light (31,32) is imaged together with a reflection of the input light (30). For example, this can be used to establish, improve, or maintain alignment of the input light (30) on a sensor input port (51) of the optical chip (50). The same detector (17) measures the spatially resolved image and a spectral response of the optical chip (50).
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 14, 2024
    Assignee: Delta Diagnostics B.V.
    Inventors: Bart Michiel De Boer, Peter Johan Harmsma
  • Publication number: 20230065945
    Abstract: The photonic integrated device comprises a substrate, a plurality of mechanical resonator structures on a surface of the substrate, exposed to receive sound waves from outside the device; a plurality of sensing optical waveguides, each sensing optical waveguide at least partly mechanically coupled to at least one of the mechanical resonator structures, or a sensing optical waveguide that is at least partly mechanically coupled to all of the mechanical resonator structures; an input optical waveguide on the surface of the substrate, coupled to the plurality of sensing optical waveguides or the single sensing optical waveguide, for supplying light to the plurality of sensing optical waveguides or the single sensing optical waveguide; at least one output optical waveguide on the surface of the substrate, coupled to the plurality of sensing optical waveguides or the single sensing optical waveguide, for collecting light from the plurality of sensing optical waveguides or the single sensing optical waveguide that
    Type: Application
    Filed: January 18, 2021
    Publication date: March 2, 2023
    Inventors: Maurits Sebastiaan VAN DER HEIDEN, Paul Louis Maria Joseph VAN NEER, Peter Johan HARMSMA, Robert Karl ALTMANN, Daniele PIRAS
  • Publication number: 20230054431
    Abstract: The sound detection device comprises a substrate, an array of sound detectors in or on a surface of the substrate, a processing circuit coupled to the sound detectors, the processing circuit being configured to sum signals from the sound detectors with relative time delays or phase shifts that compensate for propagation delay of sound along the array in a sound propagation mode that is bound to said surface. In an embodiment the sound in said sound propagation mode is bound to the surface using an acoustic waveguide, wherein the surface of the substrate forms a part of the acoustic waveguide, the sound detection device comprising a wall facing the array of sound detectors, with a space between the surface of the substrate and the wall, the sound detection device comprising an opening that provides incoming sound from outside the device access to said space, for excitation of the wave in the bound propagation mode in the acoustic waveguide by sound from outside the device.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 23, 2023
    Inventors: Paul Louis Maria Joseph VAN NEER, Peter Johan HARMSMA, Daniele PIRAS, Robert Karl ALTMANN, Maurits Sebastiaan VAN DER HEIDEN
  • Publication number: 20230055692
    Abstract: The photo-acoustic conversion based sound emitter device has a sound output surface for transmitting sound wave vibrations to a medium outside the device. An optical waveguide, is used to transmit light through an optical path within the device. First and second photo-acoustic conversion volumes, at different distances from the sound output surface, are used for transmitting sound generated in the first and second volume to the medium via the sound output surface, the optical path extending directly or indirectly successively through the first and second photo-acoustic conversion volume.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 23, 2023
    Inventors: Maurits Sebastiaan VAN DER HEIDEN, Paul Louis Maria Joseph VAN NEER, Peter Johan HARMSMA, Robert Karl ALTMANN, Daniele PIRAS
  • Publication number: 20230059011
    Abstract: The photonic integrated device for converting a light signal into sound comprises-a substrate having a substrate surface, an optical waveguide on the substrate surface, a photo-acoustic conversion body, comprising at least one volume of fractionally light absorbing material or formed entirely of fractionally light absorbing material, wherein a width of the photo-acoustic conversion body is greater than a width of the optical waveguide and means for enhancing distribution of light from the optical waveguide over the photo-acoustic conversion body.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 23, 2023
    Inventors: Peter Johan HARMSMA, Paul Louis Maria Joseph VAN NEER, Robert Karl ALTMANN, Daniele PIRAS, Maurits Sebastiaan VAN DER HEIDEN
  • Publication number: 20230023493
    Abstract: The spin-entangled photon emission device comprises a Fabry-Pérot resonator with a solid state optical waveguide integrated on a substrate. Preferably, the device is used in a configuration that makes it possible to tune the resonance wavelength of the Fabry-Pérot resonator by straining or otherwise adjusting the effective optical length of the waveguide. A diamond membrane is located in the Fabry-Pérot resonator. The diamond membrane comprises a photon-source capable of emitting a photon that is entangled with a spin state of the photon source. A first surface of the diamond membrane abuts to a first minor of the Fabry-Pérot resonator. The optical waveguide has a first end facet bonded to a first surface of the diamond membrane. The first mirror of the Fabry-Pérot resonator is formed by a reflector on the second surface of the diamond membrane. The second mirror of the Fabry-Pérot resonator is formed by a reflector on a second end facet of the optical waveguide or inside the optical waveguide.
    Type: Application
    Filed: December 11, 2020
    Publication date: January 26, 2023
    Inventors: Anna TCHEBOTAREVA, Peter Johan HARMSMA
  • Publication number: 20220299718
    Abstract: In a method or system for interrogating an optical chip (50), the optical chip (50) is illuminated with input light (30) and a spatially resolved image (50i) of the output light (31,32) is measured from the optical chip (50). The output light (31,32) is imaged together with a reflection of the input light (30). For example, this can be used to establish, improve, or maintain alignment of the input light (30) on a sensor input port (51) of the optical chip (50). The same detector (17) measures the spatially resolved image and a spectral response of the optical chip (50).
    Type: Application
    Filed: June 5, 2020
    Publication date: September 22, 2022
    Inventors: Bart Michiel De Boer, Peter Johan Harmsma
  • Patent number: 11371931
    Abstract: Methods and instruments for measuring a liquid sample (S1) in a well plate (50) by means of an optical chip 10. The chip (10) comprises an optical sensor (13) that is accessible to the liquid sample (S1) at a sampling area (SA) of the chip. A free-space optical coupler (11,12) is accessible to receive input light (L1) and/or emit output light (L2) via a coupling area (CA) of the chip (10). The sampling area (SA) of the chip 10 is submerged in the liquid sample (S1) while keeping the liquid sample (S1) away from the coupling area (CA) for interrogating the optical coupler (11,12) via an optical path (P) that does not pass through the liquid sample (S1).
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 28, 2022
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Bart Michiel De Boer, Peter Johan Harmsma, Michiel Peter Oderwald, Teunis Cornelis Van Den Dool
  • Publication number: 20210356389
    Abstract: Methods and instruments for measuring a liquid sample (S1) in a well plate (50) by means of an optical chip 10. The chip (10) comprises an optical sensor (13) that is accessible to the liquid sample (S1) at a sampling area (SA) of the chip. A free-space optical coupler (11,12) is accessible to receive input light (L1) and/or emit output light (L2) via a coupling area (CA) of the chip (10). The sampling area (SA) of the chip 10 is submerged in the liquid sample (S1) while keeping the liquid sample (S1) away from the coupling area (CA) for interrogating the optical coupler (11,12) via an optical path (P) that does not pass through the liquid sample (S1).
    Type: Application
    Filed: January 12, 2018
    Publication date: November 18, 2021
    Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Bart Michiel DE BOER, Peter Johan HARMSMA, Michiel Peter ODERWALD, Teunis Cornelis VAN DEN DOOL
  • Patent number: 10794825
    Abstract: A method and system for measuring a sample property (X) by means of photonic circuit (10). The photonic circuit (10) comprises at least two photonic sensors (11, 12) configured to modulate the light according to respective output signals (S1,S2) with periodically recurring signal values (V1, V2). The photonic sensors (11, 12) comprise a low range sensor (11) with a relatively low range or high sensitivity for measuring a change (?X) of the sample property (X) and a high range sensor (12) with a relatively high range or low sensitivity to measure the change (?X) of the sample property (X). The sample property (X) is calculated by combining the output signals (S1, S2) of the sensors (11, 12). Particularly, the second output signal (S2) of the high range sensor (12) is used to distinguish between recurring signal values (V1) in the first output signal (S1) of the low range sensor (11).
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: October 6, 2020
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Peter Johan Harmsma, Bart Michiel de Boer
  • Patent number: 10697896
    Abstract: The present disclosure concerns a method and apparatus for measuring a sensor (10) comprising multiple optical resonators (11, 12) optically connected to a single optical output interface (16). The optical resonators (11, 12) are interrogated with a light input signal (Si). A light output signal (So) is measured from the optic al output interface (16) to determine a combined spectral response (Sa) covering a wavelength range (W) including a plurality of resonance peaks (?1,i, ?2,j) for each of the optical resonators (11, 12). A Fourier transform spectrum (FT) of the combined spectral response (Sa) is calculated and a harmonic series of periodic peaks (n·f1) is identified in the Fourier transform spectrum (FT). The harmonic series of periodic peaks is filtered to obtain a filtered Fourier transform spectrum (FT1) and a sensor signal is calculated (X1) based on the filtered Fourier transform spectrum (FT1).
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 30, 2020
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Bart Michiel de Boer, Paul Louis Maria Joseph van Neer, Peter Johan Harmsma
  • Publication number: 20190353588
    Abstract: A method and system for measuring a sample property (X) by means of photonic circuit (10). The photonic circuit (10) comprises at least two photonic sensors (11, 12) configured to modulate the light according to respective output signals (S1,S2) with periodically recurring signal values (V1, V2). The photonic sensors (11, 12) comprise a low range sensor (11) with a relatively low range or high sensitivity for measuring a change (?X) of the sample property (X) and a high range sensor (12) with a relatively high range or low sensitivity to measure the change (?X) of the sample property (X). The sample property (X) is calculated by combining the output signals (S1, S2) of the sensors (11, 12). Particularly, the second output signal (S2) of the high range sensor (12) is used to distinguish between recurring signal values (V1) in the first output signal (S1) of the low range sensor (11).
    Type: Application
    Filed: January 30, 2018
    Publication date: November 21, 2019
    Inventors: Peter Johan Harmsma, Bart Michiel de Boer
  • Patent number: 10416389
    Abstract: The present disclosure concerns a photonic integrated circuit (10) and a method for interrogating a ring resonator (3) comprised therein. The circuit (10) comprises an optical port (4) for coupling light (L) into and out of the circuit (10). The circuit (10) further comprises a first waveguide (1) for receiving light (L1) from the optical port (4), and a second waveguide (2) for sending back light to the optical port (4). The ring resonator (3) is arranged between the first waveguide (1) and the second waveguide (2) for coupling a resonant wavelength (?) of the light therein between. The optical port (4) comprises a polarization splitting coupler for coupling light of a first polarization (P1) to and from the first waveguide (1) and coupling light of a second polarization (P2), orthogonal to the first polarization (P1), to and from the second waveguide (2).
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: September 17, 2019
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
    Inventors: Bart Michiel de Boer, Peter Johan Harmsma
  • Publication number: 20180266964
    Abstract: The present disclosure concerns a method and apparatus for measuring a sensor (10) comprising multiple optical resonators (11,12) optically connected to a single optical output interface (16). The optical resonators (11,12) are interrogated with a light input signal (Si). A light output signal (So) is measured from the optic al output interface (16) to determine a combined spectral response (Sa) covering a wavelength range (W) including a plurality of resonance peaks (?1,i, ?2,j) for each of the optical resonators (11,12). A Fourier transform spectrum (FT) of the combined spectral response (Sa) is calculated and a harmonic series of periodic peaks (n·f1) is identified in the Fourier transform spectrum (FT). The harmonic series of periodic peaks is filtered to obtain a filtered Fourier transform spectrum (FT1) and a sensor signal is calculated (X1) based on the filtered Fourier transform spectrum (FT1).
    Type: Application
    Filed: October 7, 2016
    Publication date: September 20, 2018
    Inventors: Bart Michiel de Boer, Paul Louis Maria Joseph van Neer, Peter Johan Harmsma
  • Patent number: 10041875
    Abstract: The present disclosure concerns an apparatus (10) and method for reading out an optical chip (20). A light source (13) is arranged for emitting single mode source light (S1) from its emitter surface (A1) towards an optical input (21) of the optical chip (20). A light detector (14) is arranged for receiving measurement light (S2) impinging onto its receiver surface (A2) from an optical output (22) of the optical chip (20), and measuring said received measurement light (S2). The emitted source light (S1) is aligned to enter the optical input (21) of the optical chip (20) and the measurement light (S2) is aligned back onto the receiver surface (A2). The receiver surface (A2) is larger than the emitter surface (A1) for facilitating the overall alignment.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: August 7, 2018
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Bart Michiel De Boer, Peter Johan Harmsma, Dario Maria Rosario Lo Cascio
  • Publication number: 20170205581
    Abstract: The present disclosure concerns a photonic integrated circuit (10) and a method for interrogating a ring resonator (3) comprised therein. The circuit (10) comprises an optical port (4) for coupling light (L) into and out of the circuit (10). The circuit (10) further comprises a first waveguide (1) for receiving light (L1) from the optical port (4), and a second waveguide (2) for sending back light to the optical port (4). The ring resonator (3) is arranged between the first waveguide (1) and the second waveguide (2) for coupling a resonant wavelength (?) of the light therein between. The optical port (4) comprises a polarization splitting coupler for coupling light of a first polarization (P1) to and from the first waveguide (1) and coupling light of a second polarization (P2), orthogonal to the first polarization (P1), to and from the second waveguide (2).
    Type: Application
    Filed: June 3, 2015
    Publication date: July 20, 2017
    Inventors: Bart Michiel de Boer, Peter Johan Harmsma
  • Patent number: 9651429
    Abstract: An optical measuring device measures a wavelength of a response from a sensing device. The optical measuring device contains a light path coupled to an interface for coupling the light path to the sensing device. A periodic optical filter has an input coupled to the light path, to sample light that is supplied to or received from the sensing device. A continuous output optical filter has an input coupled the light path to sample light that is supplied to or received from the sensing device. A computation circuit is coupled to detectors at the periodic optical filter and the continuous output optical filter. The computation circuit is programmed to process output signals from the detectors obtained during a wavelength scan. The processing involves quantization of data derived from the continuous filter wavelengths associated with respective time points at which the wavelength scan reaches corresponding positions in respective periods of the periodic optical filter.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 16, 2017
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventor: Peter Johan Harmsma
  • Publication number: 20170115206
    Abstract: The present disclosure concerns an apparatus (10) and method for reading out an optical chip (20). A light source (13) is arranged for emitting single mode source light (S1) from its emitter surface (A1) towards an optical input (21) of the optical chip (20). A light detector (14) is arranged for receiving measurement light (S2) impinging onto its receiver surface (A2) from an optical output (22) of the optical chip (20), and measuring said received measurement light (S2). The emitted source light (S1) is aligned to enter the optical input (21) of the optical chip (20) and the measurement light (S2) is aligned back onto the receiver surface (A2). The receiver surface (A2) is larger than the emitter surface (A1) for facilitating the overall alignment.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 27, 2017
    Applicants: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO, Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Bart Michiel DE BOER, Boer, Peter Johan HARMSMA, Dario Maria Rosario LO CASCIO