Patents by Inventor Rufus L. Cone

Rufus L. Cone 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).

  • Laser frequency stabilizer using transient spectral hole burning
    Patent number: 6654394
    Abstract: Techniques for stabilizing a laser at a selectable frequency include splitting an output beam from an electrically adjustable laser into a first beam and a second beam. The second beam is transmitted through a modulator. Then the second beam is transmitted through a transient spectral hole burning material onto a detector. The laser is electronically adjusted in response to a detector output from the detector which senses the changes in the modulated second beam after it passes through the transient spectral hole burning material.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: November 25, 2003
    Assignee: The Research and Development Institute, Inc.
    Inventors: Peter B. Sellin, Nicholas M. Strickland, John L. Carlsten, Rufus L. Cone
  • Programmable frequency reference for laser frequency stabilization, and arbitrary optical clock generator, using persistent spectral hole burning
    Patent number: 6516014
    Abstract: Techniques for stabilizing a laser (110) at a selectable frequency include splitting an output beam from an electrically adjustable laser into a first beam (369) and a second beam (361). The second beam is transmitted through a modulator (112). Then the second beam is transmitted through a spectral hole burning material (310) onto a detector (120). The laser is electronically adjusted in response to a detector output from the detector which senses the changes in the modulated second beam after it passes through the spectral hole burning material.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: February 4, 2003
    Assignee: The Research and Development Institute, Inc.
    Inventors: Peter B. Sellin, Nicholas M. Strickland, John L. Carlsten, Rufus L. Cone
  • Coherent interaction of optical radiation beams with optical-electronic materials of generalized crystal symmetry
    Patent number: 6407831
    Abstract: A method for optimizing the interaction of a resonant material having generalized crystal symmetry with a beam or beams of radiation. The invention includes determining a special direction relative to the axes of crystal symmetry of the material and polarizing the interaction radiation beam along this direction. The polarized radiation beam is propagated through the material perpendicular to this special direction. The method and system are used in any application which involves the coherent interaction of optical radiation beams or fields with resonant ion-doped or molecular crystals of various types. Coherent interaction of optical radiation beams or fields with resonant ion-doped or molecular crystals of various types includes the phenomena of optical coherent transients, spectral hole burning, and spatial-spectral holography (also called time and space domain holography) and provides the basis for optical-electronic devices. Such applications include computer and communications networks.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: June 18, 2002
    Assignee: Research and Development Institute, Inc.
    Inventors: Rufus L. Cone, Guanrring Wang, Yongchen Sun, Randy W. Equall