Patents by Inventor Vladimir Yashin

Vladimir Yashin 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).

  • Femtosecond laser apparatus and femtosecond laser system including the same
    Patent number: 8891564
    Abstract: There is disclosed a femtosecond laser apparatus including a first laser material comprising Ng, Np and Nm axes spatially perpendicular to each other; a second laser material comprising Np axis, Nm axis and Ng axis; and a first laser diode and second laser diodes, wherein the traveling direction of laser beams generated from the first and second laser materials is substantially parallel to Ng axis of the first laser material and the polarizing direction of laser beams generated from the first and second laser materials is substantially parallel to Np axis of the first laser material, and the traveling direction of laser beams generated from the first and second laser materials is substantially parallel to Np axis of the second material and the polarizing direction of laser beams generated from the first and second laser materials is substantially parallel to Nm axis of the second laser material.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: November 18, 2014
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Guang Hoon Kim, Uk Kang, Ju Hee Yang, Dae Sik Lee, Elena Sall, Sergey Chizhov, Andrey Kulik, Vladimir Yashin
  • FEMTOSECOND LASER APPARATUS AND FEMTOSECOND LASER SYSTEM INCLUDING THE SAME
    Publication number: 20130336345
    Abstract: There is disclosed a femtosecond laser apparatus including a first laser material comprising Ng, Np and Nm axes spatially perpendicular to each other; a second laser material comprising Np axis, Nm axis and Ng axis; and a first laser diode and second laser diodes, wherein the traveling direction of laser beams generated from the first and second laser materials is substantially parallel to Ng axis of the first laser material and the polarizing direction of laser beams generated from the first and second laser materials is substantially parallel to Np axis of the first laser material, and the traveling direction of laser beams generated from the first and second laser materials is substantially parallel to Np axis of the second material and the polarizing direction of laser beams generated from the first and second laser materials is substantially parallel to Nm axis of the second laser material.
    Type: Application
    Filed: January 29, 2013
    Publication date: December 19, 2013
    Applicant: Korea Electrotechnology Research Institute
    Inventors: Guang Hoon Kim, Uk Kang, Ju Hee Yang, Dae Sik Lee, Elena Sall, Sergey Chizhov, Andrey Kulik, Vladimir Yashin
  • Laser apparatus using anisotropic crystals
    Patent number: 8582613
    Abstract: Disclosed is a laser apparatus of amplifying a laser pulse output using an anisotropic laser crystal through chirped pulse amplification. The laser apparatus includes a laser resonator. The laser resonator includes a plurality of anisotropic laser crystals, generates a shorter femtosecond pulse by widening a spectrum bandwidth through a combination of different gain spectrum distributions using the anisotropic laser crystals, and allows a laser beam to travel in axial directions with different thermal characteristics of the anisotropic layer crystals in order to reduce a thermal effect.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: November 12, 2013
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Guang Hoon Kim, Uk Kang, Ju Hee Yang, Dae Sik Lee, Elena Sall, Sergey Chizhov, Andrey Kulik, Vladimir Yashin