Patents by Inventor Jonathan Plumridge

Jonathan Plumridge 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).

  • Publication number: 20240027784
    Abstract: Described herein is a wavelength dispersive optical system (10). The system (10) comprises at least one optical input (12, 14, 16) for projecting an input optical beam comprising a plurality of individual wavelength components and at least one optical output (18) for receiving one or more output optical beams. The system (10) also includes a diffractive optical element (DOE) (1) including a substrate (2) and an array of physical diffraction elements (3).
    Type: Application
    Filed: July 11, 2023
    Publication date: January 25, 2024
    Inventors: Jonathan PLUMRIDGE, Luke STEWART, Glenn BAXTER
  • Publication number: 20230244113
    Abstract: A liquid crystal on silicon (LCOS) device includes a silicon substrate and a pair of electrodes including an upper and a lower electrode. The lower electrode is mounted to the silicon substrate and includes a two dimensional array of pixels extending in both a first and second dimension. LCOS device also includes a liquid crystal layer disposed between the upper and lower electrodes and configured to be driveable into a plurality of electrical states by drive signals provided to the pixels of the lower electrode. The pixels are rectangular in profile having longer sides in the first dimension than in the second dimension. Further, the two dimensional array includes a pixel pitch that is greater in the first dimension than in the second dimension.
    Type: Application
    Filed: April 4, 2023
    Publication date: August 3, 2023
    Inventors: Julian ARMSTRONG, Luke STEWART, Glen W. BAXTER, Jonathan PLUMRIDGE
  • Patent number: 11656515
    Abstract: A liquid crystal on silicon (LCOS) device includes a silicon substrate and a pair of electrodes including an upper and a lower electrode. The lower electrode is mounted to the silicon substrate and includes a two dimensional array of pixels extending in both a first and second dimension. LCOS device also includes a liquid crystal layer disposed between the upper and lower electrodes and configured to be driveable into a plurality of electrical states by drive signals provided to the pixels of the lower electrode. The pixels are rectangular in profile having longer sides in the first dimension than in the second dimension. Further, the two dimensional array includes a pixel pitch that is greater in the first dimension than in the second dimension.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: May 23, 2023
    Assignee: II-VI DELAWARE, INC
    Inventors: Julian Armstrong, Luke Stewart, Glenn Wayne Baxter, Jonathan Plumridge
  • Publication number: 20220413346
    Abstract: A liquid crystal on silicon (LCOS) device includes a silicon substrate and a pair of electrodes including an upper and a lower electrode. The lower electrode is mounted to the silicon substrate and includes a two dimensional array of pixels extending in both a first and second dimension. LCOS device also includes a liquid crystal layer disposed between the upper and lower electrodes and configured to be driveable into a plurality of electrical states by drive signals provided to the pixels of the lower electrode. The pixels are rectangular in profile having longer sides in the first dimension than in the second dimension. Further, the two dimensional array includes a pixel pitch that is greater in the first dimension than in the second dimension.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Julian Armstrong, Luke Stewart, Glenn Wayne Baxter, Jonathan Plumridge
  • Patent number: 9288559
    Abstract: Described herein is an optical transmission cross-connect for routing wavelength signals to a bank of directionless transceivers. One embodiment (1) includes an array of four common-port fibers (3) for transmitting and receiving a multiplexed optical signal and an array of sixteen add/drop fibers (5) for receiving and transmitting demultiplexed signals including individual wavelength channels. A dispersive grism (7) simultaneously spatially separates the wavelength channels from the optical signals in a dispersion dimension. A lens (45) focuses each said spatially separated wavelength channel in the dispersion dimension. A Liquid Crystal on Silicon (LCOS) device (11) separately manipulates each of the focused spatially separated wavelength channels to selectively steer the wavelength channels in a switching dimension.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: March 15, 2016
    Assignee: Finisar Corporation
    Inventors: Steven James Frisken, Jonathan Plumridge
  • Publication number: 20140186038
    Abstract: Described herein is an optical transmission cross-connect for routing wavelength signals to a bank of directionless transceivers. One embodiment (1) includes an array of four common-port fibers (3) for transmitting and receiving a multiplexed optical signal and an array of sixteen add/drop fibers (5) for receiving and transmitting demultiplexed signals including individual wavelength channels. A dispersive grism (7) simultaneously spatially separates the wavelength channels from the optical signals in a dispersion dimension. A lens (45) focuses each said spatially separated wavelength channel in the dispersion dimension. A Liquid Crystal on Silicon (LCOS) device (11) separately manipulates each of the focused spatially separated wavelength channels to selectively steer the wavelength channels in a switching dimension.
    Type: Application
    Filed: July 19, 2012
    Publication date: July 3, 2014
    Applicant: FINISAR CORPORATION
    Inventors: Steven James Frisken, Jonathan Plumridge