Patents by Inventor David James Mark Stothard

David James Mark Stothard 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).

  • Communication system
    Patent number: 9191106
    Abstract: A communications system comprising at least one light source, a side-emitting fiber light rope into which light emitted from the light source is coupled, and means for sending at least one data carrying optical signal along the light rope.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: November 17, 2015
    Assignee: UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS
    Inventors: Malcolm Harry Dunn, Donald Walker, David James Mark Stothard
  • Control of relaxation oscillations in intracavity optical parametric oscillators
    Patent number: 8830565
    Abstract: An intra-cavity optical parametric oscillator. The oscillator includes means for providing a non-linear loss for suppressing relaxation oscillations.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: September 9, 2014
    Assignee: University Court of the University of St Andrews
    Inventors: Malcolm Harry Dun, David James Mark Stothard, Cameron Francis Rae
  • Parametric generator
    Patent number: 8699124
    Abstract: A method of optimizing parametric gain in a nonlinear optical crystal that in response to application of a pump beam generates through a parametric generation process signal and idler beams, wherein the signal beam is non-collinear with the pump beam and the signal beam is subject to absorption due to the nonlinear material, the method involving shaping the pump beam to have an elliptical cross section, wherein the method further involves determining the width w of the pump beam depending on the absorption co-efficient of the optical crystal.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: April 15, 2014
    Assignee: University Court of The University of St Andrews
    Inventors: Malcolm Harry Dunn, Cameron Francis Rae, David James Mark Stothard, David Alan Walsh
  • PARAMETRIC GENERATOR
    Publication number: 20130163070
    Abstract: A method of optimizing parametric gain in a nonlinear optical crystal that in response to application of a pump beam generates through a parametric generation process signal and idler beams, wherein the signal beam is non-collinear with the pump beam and the signal beam is subject to absorption due to the nonlinear material, the method involving shaping the pump beam to have an elliptical cross section, wherein the method further involves determining the width w of the pump beam depending on the absorption co-efficient of the optical crystal.
    Type: Application
    Filed: June 16, 2011
    Publication date: June 27, 2013
    Applicant: University Court of The University of St. Andrews
    Inventors: Malcolm Harry Dunn, Cameron Francis Rae, David James Mark Stothard, David Alan Walsh
  • COMMUNICATION SYSTEM
    Publication number: 20120195598
    Abstract: A communications system comprising at least one light source, a side-emitting fiber light rope into which light emitted from the light source is coupled, and means for sending at least one data carrying optical signal along the light rope.
    Type: Application
    Filed: August 24, 2010
    Publication date: August 2, 2012
    Applicant: UNIVERSITY COURT OF THE UNIVERITY OF ST ANDREWS
    Inventors: Malcolm Harry Dunn, Donald Walker, David James Mark Stothard
  • CONTROL OF RELAXATION OSCILLATIONS IN INTRACAVITY OPTICAL PARAMETRIC OSCILLATORS
    Publication number: 20110116158
    Abstract: An intra-cavity optical parametric oscillator. The oscillator includes means for providing a non-linear loss for suppressing relaxation oscillations.
    Type: Application
    Filed: July 30, 2009
    Publication date: May 19, 2011
    Applicant: The University Court of The University of St. Andrews
    Inventors: Malcolm Harry Dunn, David James Mark Stothard, Cameron Francis Rae