Patents by Inventor Cameron Francis Rae

Cameron Francis Rae 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).

  • Optical parametric generator based on a slant-stripe periodically poled nonlinear material with optimized lateral output coupling of a terahertz signal
    Patent number: 8861074
    Abstract: An optical parametric device comprising a slant-stripe periodically poled nonlinear material that is operable to generate signal in response to interaction with a pump wave, the non-linear interaction being such that the pump and idler waves are collinear and the signal wave is non-collinear relative to the pump and idler waves, wherein the slant-stripe non-linear material is able to generate two idler waves and two signal waves, and the device is adapted to allow for the selection and output coupling of a required one of the two signal waves.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: October 14, 2014
    Assignee: University Court of the University of St Andrews
    Inventors: Cameron Francis Rae, Malcolm Harry Dunn, David Alan Walsh
  • 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
  • OPTICAL PARAMETRIC GENERATOR BASED ON A SLANT-STRIPE PERIODICALLY POLED NONLINEAR MATERIAL WITH OPTIMIZED LATERAL OUTPUT COUPLING OF A TERAHERTZ SIGNAL
    Publication number: 20130128340
    Abstract: An optical parametric device comprising a slant-stripe periodically poled nonlinear material that is operable to generate signal in response to interaction with a pump wave, the non-linear interaction being such that the pump and idler waves are collinear and the signal wave is non-collinear relative to the pump and idler waves, wherein the slant-stripe non-linear material is able to generate two idler waves and two signal waves, and the device is adapted to allow for the selection and output coupling of a required one of the two signal waves.
    Type: Application
    Filed: May 10, 2011
    Publication date: May 23, 2013
    Applicant: UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS
    Inventors: Cameron Francis Rae, Malcolm Harry Dunn, David Alan Walsh
  • Safe lighting system
    Patent number: 8356923
    Abstract: A lighting system comprising a light source, a fiber rope into which light emitted from the light source is coupled, and a control unit for controlling the optical power of light emitted by the light source to maintain the fiber rope at or below a predetermined upper temperature even if the fiber is partially or fully severed.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: January 22, 2013
    Assignee: The University Court of the University of St Andrews
    Inventors: Donald Walker, Malcolm Harry Dunn, Cameron Francis Rae
  • 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
  • SAFE LIGHTING SYSTEM
    Publication number: 20100320914
    Abstract: A lighting system comprising a light source, a fiber rope into which light emitted from the light source is coupled, and a control unit for controlling the optical power of light emitted by the light source to maintain the fiber rope at or below a predetermined upper temperature even if the fiber is partially or fully severed.
    Type: Application
    Filed: February 24, 2009
    Publication date: December 23, 2010
    Applicant: THE UNIVERSITY COURT OF THE UNIVERSITY OF ST. ANDREWS
    Inventors: Donald Walker, Malcolm Harry Dunn, Cameron Francis Rae