Patents by Inventor Donald J. Reichle

Donald J. Reichle 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).

  • Controlling second harmonic efficiency of laser beam interactions
    Patent number: 7912101
    Abstract: A method is provided for controlling second harmonic efficiency of laser beam interactions. A laser system generates two laser beams (e.g., a laser beam with two polarizations) for incidence on a nonlinear crystal having a preferred direction of propagation. Prior to incidence on the crystal, the beams are optically processed based on the crystal's beam separation characteristics to thereby control a position in the crystal along the preferred direction of propagation at which the beams interact.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: March 22, 2011
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Norman P. Barnes, Brian M. Walsh, Donald J. Reichle
  • Multiple-wavelength tunable laser
    Patent number: 7848381
    Abstract: A tunable laser includes dispersion optics for separating generated laser pulses into first and second wavelength pulses directed along first and second optical paths. First and second reflective mirrors are disposed in the first and second optical paths, respectively. The laser's output mirror is partially reflective and partially transmissive with respect to the first wavelength and the second wavelength in accordance with provided criteria. A first resonator length is defined between the output mirror and the first mirror, while a second resonator length is defined between the output mirror and the second mirror. The second resonator length is a function of the first resonator length.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 7, 2010
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Norman P. Barnes, Brian M. Walsh, Donald J. Reichle
  • Controlling Second Harmonic Efficiency of Laser Beam Interactions
    Publication number: 20100135344
    Abstract: A method is provided for controlling second harmonic efficiency of laser beam interactions. A laser system generates two laser beams (e.g., a laser beam with two polarizations) for incidence on a nonlinear crystal having a preferred direction of propagation. Prior to incidence on the crystal, the beams are optically processed based on the crystal's beam separation characteristics to thereby control a position in the crystal along the preferred direction of propagation at which the beams interact.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 3, 2010
    Applicant: USA as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Norman P. Barnes, Brian M. Walsh, Donald J. Reichle
  • Multiple-Wavelength Tunable Laser
    Publication number: 20090207868
    Abstract: A tunable laser includes dispersion optics for separating generated laser pulses into first and second wavelength pulses directed along first and second optical paths. First and second reflective mirrors are disposed in the first and second optical paths, respectively. The laser's output mirror is partially reflective and partially transmissive with respect to the first wavelength and the second wavelength in accordance with provided criteria. A first resonator length is defined between the output mirror and the first mirror, while a second resonator length is defined between the output mirror and the second mirror. The second resonator length is a function of the first resonator length.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 20, 2009
    Applicant: USA as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Norman P. Barnes, Brian M. Walsh, Donald J. Reichle