Patents by Inventor Kevin J. Snell

Kevin J. Snell 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).

  • Efficient optical parametric oscillator with photon recycling
    Patent number: 6985282
    Abstract: The problem of the low efficiency of large quantum defect optical parametric oscillators is solved by recycling unused photons in a process involving pumping additional parametric processes having a common resonant wavelength. In order to improve the efficiency, a series of optical parametric oscillators are pumped with unused signal photons which exist at the output of a previous optical parametric oscillator that generates both signal and idler outputs, with the idler constituting the desired output.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: January 10, 2006
    Assignee: BAE Systems Information and Electronics Systems Integration Inc.
    Inventor: Kevin J. Snell
  • Ring optical parametric oscillator/optical parametric amplifier combination in single beamline
    Patent number: 6965621
    Abstract: By substituting a ring optical parametric oscillator for the linear cavity, one eliminates the effects of feedback solved in the prior art by the use of isolators and by the purposeful off-axis alignment of the pump laser beam. The result is an exceedingly robust system with state-of-the-art efficiency for maximizing output power while preserving beam quality.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: November 15, 2005
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: John C. McCarthy, Kevin J. Snell
  • Multiple emitter side pumping method and apparatus for fiber lasers
    Patent number: 6801550
    Abstract: A modified V-groove structure in a double clad laser system permits multiple emitter side pumping of a fiber laser. In one embodiment, a stack of at least five emitters have individual outputs coupled into the inner cladding, with as many sources as desired coupled to the fiber to raise the cumulative pumping power to in excess of 2-KW, thus to achieve a 1-KW fiber laser.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: October 5, 2004
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Kevin J. Snell, Scott D. Setzler