Patents by Inventor Jolyon Richard Tidmarsh

Jolyon Richard Tidmarsh 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: 11204275
    Abstract: A spectrometer for detecting one or more wavelength components of sample radiation is disclosed. The spectrometer includes: a detector comprising a two-dimensional rectilinear array of pixels for generating signals representing an image based on collected sample radiation; one or more optical components arranged to form a spatial pattern based on spectral features of the sample radiation the spatial pattern including a plurality of aligned substantially parallel fringes oriented at a non-zero skew angle to the two-dimensional rectilinear array; and an analyser arranged to receive the signals and provide an output related to the one or more wavelengths. The spectrometer suppresses column/row noise in the detector. Also disclosed is a method of suppressing noise when signals are extracted and processed from detector arrays.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: December 21, 2021
    Assignee: Keit Limited
    Inventors: James Paul Sobol, James David Powell, Jolyon Richard Tidmarsh, David James Edmonds Denny
  • Publication number: 20200191650
    Abstract: A spectrometer for detecting one or more wavelength components of sample radiation is disclosed. The spectrometer includes: a detector comprising a two-dimensional rectilinear array of pixels for generating signals representing an image based on collected sample radiation; one or more optical components arranged to form a spatial pattern based on spectral features of the sample radiation the spatial pattern including a plurality of aligned substantially parallel fringes oriented at a non-zero skew angle to the two-dimensional rectilinear array; and an analyser arranged to receive the signals and provide an output related to the one or more wavelengths. The spectrometer suppresses column/row noise in the detector. Also disclosed is a method of suppressing noise when signals are extracted and processed from detector arrays.
    Type: Application
    Filed: June 21, 2018
    Publication date: June 18, 2020
    Applicant: Keit Limited
    Inventors: James Paul Sobol, James David Powell, Jolyon Richard Tidmarsh, David James Edmonds Denny
  • Publication number: 20030215187
    Abstract: An arrangement of an integrated optical waveguide (1) relative to a V-groove (2) for receiving an optical fibre (5) which is to be optically coupled with an end of the waveguide (1) is described. A waveguide (1) is formed in a crystalline optical substrate (3), and a V-groove (2) formed therein beneath an elongate parallel sided window in the substrate with a centre line (2A) of the V-groove (2) aligned with an end (1A) of the waveguide (1). The parallel sides (2B, 2C) of the window at the end of the V-groove (2) aligned with the waveguide (1) terminate out of alignment with each other in a direction along the length of the V-groove whereby the V-groove undercuts a portion (3A) of the optically conducting layer (3) beneath said end of the waveguide (1). The end of the waveguide (1) therefore overhangs the end of the V-groove (2) to enable the end of an optical fibre (5) to be located in close proximity thereto.
    Type: Application
    Filed: February 20, 2003
    Publication date: November 20, 2003
    Applicant: Bookham Technology plc
    Inventors: Jolyon Richard Tidmarsh, Matthew Peter Shaw, John Paul Drake
  • Patent number: 6415066
    Abstract: An integrated optical circuit is formed in a silicon layer and supported on a substrate, and a portion of the silicon layer is substantially thermally isolated from the substrate by extending over a recess in the substrate, e.g. in the form of a bridge. Temperature control means are provided to control the temperature of the portion of the silicon layer or of a device provided thereon. A thermal expansion gap may be provided in the portion to accommodate thermal expansion of the portion relative to the substrate.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: July 2, 2002
    Assignee: Bookham Technology PLC
    Inventors: Arnold Peter Roscoe Harpin, Andrew George Rickman, Jolyon Richard Tidmarsh
  • Patent number: 6101210
    Abstract: External Cavity Laser An external cavity laser comprising first and second feedback means with an optical gain medium (2) therebetween, one of the feedback means is provided by a grating (4) formed in a silicon waveguide and the other feedback means is provided by a reflective back facet (2B) of the optical gain medium (2). The output wavelength of the laser, at a given temperature, can thus be determined during its manufacture and the laser can be made by mass production techniques. The grating (4) may be thermally isolated to obviate the need for temperature control means (6) to control the temperature of the grating (4). An array of lasers may be provided on a single chip.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: August 8, 2000
    Assignee: Bookham Technology PLC
    Inventors: Timothy David Bestwick, Jolyon Richard Tidmarsh, Stephen James Fasham