Patents by Inventor Sergey Sobolev

Sergey Sobolev 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).

  • Diode-pumped laser drive
    Patent number: 6188704
    Abstract: This invention relates to a new diode pumped solid state laser which has a miniature Q-switching device in the cavity. Nd:YAG, Nd:YLF or Nd:YVO4 are useful solid state laser materials for Q-switching. A compact thermo-electric (TE)cooled diode laser unit is used as a pump source, and high-speed switching of the drive current driver is provided for the precise pump energy control. By using the variable high-speed switching pump source, the energy of each Q-switched output pulse from the laser can be controlled precisely and the usual “giant pulse” from the Q-switch can be eliminated. Also, the pulse energy can be controlled precisely independent of the repetition rate or switching speed of the Q-switch without using other feedback components. The Q-switch is synchronized to open at the end of each diode pump pulse.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: February 13, 2001
    Assignee: Rocky Mountain Instrument Co.
    Inventors: Young Key Kwon, Jeffrey Michael Buske, Sergey Sobolev, Aram Semerjyan