Patents by Inventor Larry D. Siebert

Larry D. Siebert 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).

  • High voltage switch for pockels cells
    Patent number: 5594256
    Abstract: A high voltage switch for discharging a storage capacitor to increase the voltage across a pockels cell includes a plurality of semi-conductor devices conducted in series with the pockels cell and the capacitor, each of the semiconductor devices having a control input; a plurality of fast, light responsive devices connected to the control input of each semiconductor device of the plurality of semiconductive devices respectively for switching the respective device from a non-conducting state to a conducting state; and a controlled, fast rise time light source optically coupled to all of the fast light responsive devices for simultaneously triggering all of the semi-conductor devices.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: January 14, 1997
    Assignee: Clark-MXR, Inc.
    Inventor: Larry D. Siebert
  • Laser fusion pulse shape controller
    Patent number: 4061985
    Abstract: An apparatus for controlling the pulse shape, i.e., the pulse duration and intensity pattern, of a pulsed laser system, and which is particularly well adapted for controlling the pellet ignition pulse in a laser-driven fusion reaction system. The apparatus comprises a laser generator for providing an optical control pulse of the shape desired, a pulsed laser triggered by the control pulse, and a plurality of optical Kerr-effect gates serially disposed at the output of the pulsed laser and selectively triggered by the control pulse to pass only a portion of the pulsed laser output generally corresponding in shape to the control pulse.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: December 6, 1977
    Assignee: KMS Fusion, Inc.
    Inventor: Larry D. Siebert
  • Temperature control for apodizers
    Patent number: 4043635
    Abstract: An apparatus for matching the refractive index of the attenuating fluid to the windows in dye cell apodizers and a method for accomplishing the same, which includes an apodizer window and a support therefor together with a heating device associated with the window and a control means for regulating the temperature of the heating device.
    Type: Grant
    Filed: November 21, 1974
    Date of Patent: August 23, 1977
    Assignee: KMS Fusion, Inc.
    Inventor: Larry D. Siebert
  • High power laser apodizer
    Patent number: 4017164
    Abstract: A non-bleachable liquid absorber for high power laser apodizers which utilizes an annular liquid chamber filled with a dye solution composed of copper nitrate in dimethyl sulfoxide and water.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: April 12, 1977
    Assignee: KMS Fusion, Inc.
    Inventors: Robert L. Nolen, Jr., Larry D. Siebert
  • Apodizer aperture for lasers
    Patent number: 3990786
    Abstract: An aperture attenuator for use with high power lasers which includes glass windows shaped and assembled to form an annulus chamber which is filled with a dye solution. The annulus chamber is shaped such that the section in alignment with the axis of the incident beam follows a curve which is represented by the equation y = (r - r.sub.o).sup.n.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: November 9, 1976
    Assignee: KMS Fusion, Inc.
    Inventors: Siebe Jorna, Larry D. Siebert, Keith A. Brueckner