Patents by Inventor Craig E Ives

Craig E Ives 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: 12021312
    Abstract: Disclosed herein is a phased antenna array which is configured to provide a signal through multiple antennas. The phased antenna array may include a plurality of sub-arrays. Each sub-array may include a complete and functional optically synchronized integrated circuit including an integrated photo diode. Advantageously, integrating the photo diode into the integrated circuit may reduce the size of the sub-array and decrease the length the high frequency timing signal is passed.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: June 25, 2024
    Assignee: California Institute of Technology
    Inventors: Matan Gal, Craig E. Ives, Armina Khakpour, Seyed Ali Hajimiri
  • Patent number: 11855119
    Abstract: A method of fabricating a photonic device includes in part, forming a multitude of metal and dielectric layers over a semiconductor substrate to form a structure. The metal layers form a continuous metal trace that characterize an etch channel. At least one of the metal layers extends towards an exterior surface of the structure such that when the structure is exposed to a metal etch, the metal etch removes the metal from the exterior surface of the structure and flows through the etch channel to fully etch the metal layers. The metal etch leaves behind a dielectric structure characterizing a photonic device. The photonic device may be a suspended rib waveguide, a suspended channel waveguide, a grating coupler, an interlayer coupler, a photodetector, a phase modulator, an edge coupler, and the like. A photonics system may include one or more of such devices.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 26, 2023
    Assignee: California Institute of Technology
    Inventors: Craig E Ives, Seyed Mohammadreza Fatemi, Aroutin Khachaturian, Seyed Ali Hajimiri
  • Publication number: 20220021114
    Abstract: Disclosed herein is a phased antenna array which is configured to provide a signal through multiple antennas. The phased antenna array may include a plurality of sub-arrays. Each sub-array may include a complete and functional optically synchronized integrated circuit including an integrated photo diode. Advantageously, integrating the photo diode into the integrated circuit may reduce the size of the sub-array and decrease the length the high frequency timing signal is passed.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 20, 2022
    Applicant: California Institute of Technology
    Inventors: Matan Gal, Craig E. Ives, Armina Khakpour, Seyed Ali Hajimiri
  • Publication number: 20210175276
    Abstract: A method of fabricating a photonic device includes in part, forming a multitude of metal and dielectric layers over a semiconductor substrate to form a structure. The metal layers form a continuous metal trace that characterize an etch channel. At least one of the metal layers extends towards an exterior surface of the structure such that when the structure is exposed to a metal etch, the metal etch removes the metal from the exterior surface of the structure and flows through the etch channel to fully etch the metal layers. The metal etch leaves behind a dielectric structure characterizing a photonic device. The photonic device may be a suspended rib waveguide, a suspended channel waveguide, a grating coupler, an interlayer coupler, a photodetector, a phase modulator, an edge coupler, and the like. A photonics system may include one or more of such devices.
    Type: Application
    Filed: September 30, 2020
    Publication date: June 10, 2021
    Inventors: Craig E Ives, Seyed Mohammadreza Fatemi, Aroutin Khachaturian, Seyed Ali Hajimiri