Patents by Inventor Chris Pohalski

Chris Pohalski 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).

  • Q-switched laser system providing UV light
    Patent number: 5835513
    Abstract: A diode pumped laser includes a high reflector and an output coupler defining a resonator. The resonator includes a gain medium and a Q-switch and produces a fundamental beam. A first non-linear crystal is positioned extra-cavity of the resonator along a path of the fundamental beam. The first non-linear crystal generates a second harmonic beam from the fundamental beam. The first non-linear crystal is critically phased matched. A second non-linear crystal is portioned extra-cavity of the resonator along a path of the fundamental beam and the path of the second harmonic beam. The second non-linear crystal produces a third harmonic beam. The second non-linear crystal is critically phased matched.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: November 10, 1998
    Assignee: Spectra Physics, Inc.
    Inventors: Jan-Willem Pieterse, Alan B. Petersen, Chris Pohalski, Emily Cheng, Randall Lane, William L. Nighan, Jr.