Patents by Inventor Dmitry Vladimirovich Churkin

Dmitry Vladimirovich Churkin 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).

  • Fibre Laser with Intra-cavity Frequency Doubling
    Publication number: 20090245294
    Abstract: The invention disclosed herein relates to fibre lasers with intra-cavity frequency doubling. In one embodiment, the invention is directed to a fibre laser with intra-cavity frequency doubling characterized in that a non-linear crystal of type II phase matching is used to thereby enable operation of the fibre laser without selection of polarisation of the generated fundamental radiation. The non-linear crystal is oriented so as to minimise the walk-off angle of the second harmonic radiation, and a second dichroic mirror together with one of a plurality of focusing elements forms a telescopic reflector that provides for focusing and compensation of the spatial walk-off effect of the non-linear crystal.
    Type: Application
    Filed: July 30, 2008
    Publication date: October 1, 2009
    Applicant: Zecotek Laser Systems Pte. Ltd.
    Inventors: Validimir Alexandrovich Alkulov, Sergei Alexeevich Babin, Sergei Ivanovich Kablukov, Dmitry Vladimirovich Churkin