Patents by Inventor Raymond Beausoleil

Raymond Beausoleil 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: 10811549
    Abstract: A quantum-dot based avalanche photodiode (QD-APD) may include a silicon substrate and a waveguide on which a quantum dot (QD) stack of layers is formed having a QD light absorption layer, a charge multiplication layer (CML), and spacer layers. The QD stack may be formed within a p-n junction. The waveguide may include a mode converter to facilitate optical coupling and light transfer from the waveguide to the QD light absorption layer. The QD absorption layer and the CML layer may be combined or separate layers. The CML may generate electrical current from the absorbed light with more than 100% quantum efficiency when the p-n junction is reverse-biased.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 20, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Geza Kurczveil, Di Liang, Bassem Tossoun, Chong Zhang, Xiaoge Zeng, Zhihong Huang, Raymond Beausoleil
  • Publication number: 20200243701
    Abstract: A quantum-dot based avalanche photodiode (QD-APD) may include a silicon substrate and a waveguide on which a quantum dot (QD) stack of layers is formed having a QD light absorption layer, a charge multiplication layer (CML), and spacer layers. The QD stack may be formed within a p-n junction. The waveguide may include a mode converter to facilitate optical coupling and light transfer from the waveguide to the QD light absorption layer. The QD absorption layer and the CML layer may be combined or separate layers. The CML may generate electrical current from the absorbed light with more than 100% quantum efficiency when the p-n junction is reverse-biased.
    Type: Application
    Filed: January 29, 2019
    Publication date: July 30, 2020
    Inventors: Geza Kurczveil, Di Liang, Bassem Tossoun, Chong Zhang, Xiaoge Zeng, Zhihong Huang, Raymond Beausoleil
  • Patent number: 8384401
    Abstract: A system for event detection uses a resistive switching device to record a detected event. The resistive switching device has a resistance adjustable by an applied voltage. The operation of the resistive switching device is controlled by a controller, which is configured to apply a switching voltage to the resistive switching device at a start time, and turn off the switching voltage in response to an event signal indicative of occurrence of an event. The resistance value of the resistive switching device resulting from the application of the switching voltage is indicative of the detection of the event and also the time of the occurrence of the event.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: February 26, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kai-Mei Fu, John Paul Strachan, Raymond Beausoleil, Julien Borghetti
  • Patent number: 8244134
    Abstract: An optical interconnect has a plurality of optical sources, a first lens configured to collimate optical beams from the plurality of optical sources, a second lens configured to refocus the optical beams, and a plurality of optical receivers configured to receive the refocused optical beams from the second lens.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: August 14, 2012
    Inventors: Charles Santori, David Fattal, Wei Wu, Robert Bicknell, Shih-Yuan Wang, R. Stanley Williams, Duncan Stewart, Nathaniel Quitoriano, Raymond Beausoleil
  • Publication number: 20120136631
    Abstract: Apparatus and systems are provided for data signaling between a centralized transceiver and a plurality of sensor nodes. Subordinate sensor nodes transmit data corresponding to sensed physical variables to a master node within a group. The master node within the group transmits the data on to a data acquisition transceiver. Data communications are performed by free-space signaling. Large areas can be monitored by a vast array of such sensors, organized as plural neighborhoods, without the need for wiring, optical fibers or other tangible interconnections.
    Type: Application
    Filed: January 29, 2010
    Publication date: May 31, 2012
    Inventors: Alexandre Bratkovski, Marco Fiorentino, Raymond Beausoleil
  • Patent number: 8179935
    Abstract: An optical apparatus includes a substrate comprising a layer of thermally insulating material disposed thereon; an optical resonator disposed on the layer of thermally insulating material; and a trench in the thermally insulating material disposed around at least a portion of the optical resonator. The optical resonator is substantially thermally isolated from the substrate.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: May 15, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Charles Santori, Duncan Stewart, Robert G Walmsley, Sagi Mathai, Marco Fiorentino, David Fattal, Qianfan Xu, Raymond Beausoleil
  • Patent number: 8138013
    Abstract: A method for forming a photodiode is provided. The method comprises: providing a region of semiconductor material having a first surface and a second surface; coupling a first conductive layer to the first surface of the semiconductor material; and coupling a second conductive surface to the second surface of the semiconductor material to form a photodiode, the second conductive surface comprising a metal surface having a two-dimensional periodic array of openings therethrough, wherein the photodiode is configured to be operated such that light is incident on the second conductive surface. A method for reducing the required thickness of a photodiode is also provided.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: March 20, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Fattal, Jason Blackstock, Raymond Beausoleil
  • Patent number: 8064739
    Abstract: Examples of a computer system packaged in a three-dimensional stack of dies are described. The package includes an electrical die and an optical die coupled to and stacked with the electrical die. The electrical die includes circuitry to process and communicate electrical signals, and the optical die includes structures to transport optical signals. The electrical die has a smaller area than the optical die so that the optical die includes an exposed mezzanine which is configured with optical input/output ports. Additionally, the packaging can be configured to provide structural support against insertion forces for external optical connections.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: November 22, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Nathan Binkert, Norm Jouppi, Al Davis, Raymond Beausoleil
  • Publication number: 20110241756
    Abstract: A system for event detection uses a resistive switching device to record a detected event. The resistive switching device has a resistance adjustable by means of an applied voltage. The operation of the resistive switching device is controlled by a controller, which is configured to apply a switching voltage to the resistive switching device at a start time, and turn off the switching voltage in response to an event signal indicative of occurrence of an event. The resistance value of the resistive switching device resulting from the application of the switching voltage is indicative of the detection of the event and also the time of the occurrence of the event.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Inventors: Kai-Mei FU, John Paul Strachan, Raymond Beausoleil, Julien Borghetti
  • Patent number: 8009943
    Abstract: Various embodiments of the present invention are directed to photonic switches and switch fabrics employing the photonic switches. In one embodiment of the present invention, a photonic switch comprises a first waveguide disposed on a surface of a substrate in proximity to an opening in the substrate, and a second waveguide crossing the first waveguide and positioned in proximity to the opening in the substrate. The photonic switch includes a tunable microring resonator disposed on the surface of the substrate adjacent to the first waveguide and the second waveguide and configured with an opening aligned with the opening in the substrate. The photonic switch also includes a wire having a first end and a second end and configured to pass through the opening in the microring and the opening in the substrate.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: August 30, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexandre Bratkovski, Michael Tan, Raymond Beausoleil
  • Publication number: 20110177647
    Abstract: A method for forming a photodiode is provided. The method comprises: providing a region of semiconductor material having a first surface and a second surface; coupling a first conductive layer to the first surface of the semiconductor material; and coupling a second conductive surface to the second surface of the semiconductor material to form a photodiode, the second conductive surface comprising a metal surface having a two-dimensional periodic array of openings therethrough, wherein the photodiode is configured to be operated such that light is incident on the second conductive surface. A method for reducing the required thickness of a photodiode is also provided.
    Type: Application
    Filed: February 14, 2011
    Publication date: July 21, 2011
    Inventors: David Fattal, Jason Blackstock, Raymond Beausoleil
  • Publication number: 20110169815
    Abstract: A spatial light modulator includes an array of pixels, with each of the pixels having a dimension smaller than a wavelength of light to be modulated. Each of the pixels further has a permittivity that can he controlled using an electronic signal applied to the pixel.
    Type: Application
    Filed: December 16, 2008
    Publication date: July 14, 2011
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: David A. Fattal, Charles M. Santori, Marco Fiorentino, Raymond Beausoleil
  • Patent number: 7923802
    Abstract: Embodiments of the invention provide a method and an apparatus for forming a photodiode. One embodiment provides a thin dielectric layer sandwiched between two metallic plates (electrodes), one or both of which are periodically patterned in one or two dimensions. The effect of the pattern is to couple incident light within some range of wavelength and/or incidence angles to surface excitations of the metal surface called surface plasmons, enhancing the electric field near the surface and resulting in dramatically increased photo-absorption and carrier generation in the dielectric layer.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: April 12, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Fattal, Jason Blackstock, Raymond Beausoleil
  • Patent number: 7845860
    Abstract: A method for connecting a photonic crystal fiber having a plurality of cores connected to an optical device. An end of the photonic crystal fiber may be placed on a surface of an optical device having a plurality of coupling pads. A first core of the end of the photonic crystal fiber may be positioned over a first coupling pad on the optical device to enable a threshold amount of a coherent beam of light to propagate through the first core and first coupling pad. A second core of the end of the photonic crystal fiber is aligned to a second coupling pad on the optical device to enable a threshold amount of another coherent beam of light to propagate through the second core and second coupling pad. The end of the photonic crystal fiber may be adhered to the surface of the optical device while the position of the first and the second cores relative to the first and the second coupling pads, respectively, is maintained.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: December 7, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Marco Fiorentino, Raymond Beausoleil, Duncan Stewart
  • Patent number: 7769173
    Abstract: Various method and system embodiments of the present invention are directed to executing bit-commitment protocols. In one embodiment of the present invention, a method for executing a bit-commitment protocol for transmitting a bit from a first party to a second party comprises preparing a three qubits are entangled in a W-state, and storing a first of the three qubits in a first storage device controlled by the first party, a second of the three qubits is stored in a second storage device controlled by the second party, and a third of the three qubits is stored in a third storage device controlled by a third party. The bit is revealed to the second party by transmitting the first and third qubits to the second party and measuring the states of the three qubits to which of the entangled W-states the three qubits are in.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: August 3, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: William John Munro, Timothy Paul Spiller, Raymond Beausoleil, Keith Harrison, Marco Fiorentino
  • Patent number: 7720377
    Abstract: Various embodiments of the present invention are directed to photonic-interconnection-based compute clusters that provide high-speed, high-bandwidth interconnections between compute cluster nodes. In one embodiment of the present invention, the compute cluster includes a photonic interconnection having one or more optical transmission paths for transmitting independent frequency channels within an optical signal to each node in a set of nodes. The compute cluster includes one or more photonic-interconnection-based writers, each writer associated with a particular node, and each writer encoding information generated by the node into one of the independent frequency channels. A switch fabric directs the information encoded in the independent frequency channels to one or more nodes in the compute cluster.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: May 18, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gregory S. Snider, Raymond Beausoleil
  • Patent number: 7720342
    Abstract: An optical device includes at least two materials forming a structure with a graded bandgap where photocarriers are generated. A first of the at least two materials has a larger concentration at opposed ends of the graded bandgap structure than a concentration of the first of the at least two materials at an interior region of the graded bandgap structure. The second of the at least two materials has a larger concentration at the interior region of the graded bandgap structure than the concentration of the second of the at least two materials at the opposed ends of the graded bandgap structure.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: May 18, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexandre Bratkovski, Theodore I. Kamins, David Fattal, Raymond Beausoleil
  • Patent number: 7692135
    Abstract: A detector includes a light detecting layer and a grating structure. The light detecting layer, which can be a photodiode, has an optical mode that resonates in the light detecting layer, and the grating structure is positioned to interact with the optical mode. The grating structure further couples incident light having a resonant frequency into the optical mode, and causes destructive interference to prevent light having the resonant frequency from escaping the detecting layer. The light detecting layer can be made transparent to light having other frequencies, so that a stack of such detectors, each having a different resonant frequency, can be integrated into a WDM detector that is compact and efficient.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: April 6, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Fattal, Wei Wu, Raymond Beausoleil
  • Publication number: 20090273049
    Abstract: A detector includes a light detecting layer and a grating structure. The light detecting layer, which can be a photodiode, has an optical mode that resonates in the light detecting layer, and the grating structure is positioned to interact with the optical mode. The grating structure further couples incident light having a resonant frequency into the optical mode, and causes destructive interference to prevent light having the resonant frequency from escaping the detecting layer. The light detecting layer can be made transparent to light having other frequencies, so that a stack of such detectors, each having a different resonant frequency, can be integrated into a WDM detector that is compact and efficient.
    Type: Application
    Filed: October 31, 2008
    Publication date: November 5, 2009
    Inventors: David Fattal, Wei Wu, Raymond Beausoleil
  • Publication number: 20090257703
    Abstract: An optical device includes at least two materials forming a structure with a graded bandgap where photocarriers are generated. A first of the at least two materials has a larger concentration at opposed ends of the graded bandgap structure than a concentration of the first of the at least two materials at an interior region of the graded bandgap structure. The second of the at least two materials has a larger concentration at the interior region of the graded bandgap structure than the concentration of the second of the at least two materials at the opposed ends of the graded bandgap structure.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 15, 2009
    Inventors: Alexandre Bratkovski, Theodore I. Kamins, David Fattal, Raymond Beausoleil