Patents by Inventor James N. Bradford

James N. Bradford 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).

  • Semiconductor laser and optical amplifier
    Patent number: 4713821
    Abstract: A semiconductor source of high power, spatially and temporally coherent light including means to prevent damage to the output face. A laser diode is disposed in optical contact with a power amplifier having a diverging active area which causes emitted light to be distributed over a large facet area.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: December 15, 1987
    Assignee: The Perkin-Elmer Corporation
    Inventors: James N. Bradford, Jimmy R. Ames, Andrew H. Montroll
  • Solid state laser with controlled optical pumping
    Patent number: 4439861
    Abstract: A laser apparatus employing a solid state lasing element pumped by a controlled pump providing pump power of adjustable amplitude, constant over the controllable duration of pumping. The laser apparatus thus embodied providing the means for producing and amplifying laser pulses of coherent radiation having generally rectangular pulse shape.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: March 27, 1984
    Assignee: MRJ, Inc.
    Inventor: James N. Bradford