Patents by Inventor Nicholai Platonov

Nicholai Platonov 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).

  • Apparatus and method for side mode suppression in slave-master laser by single mode fiber amplifier
    Patent number: 8179929
    Abstract: A laser system for effective injection seeding is configured with a master oscillator lasing a narrowband seed radiation which is characterized by a single longitudinal master mode injected into a slave oscillator so that the latter generates a broadband slave radiation with a dominant slave mode and side slave modes. The slave radiation is coupled into an input of a SM fiber laser amplifier operative to output an amplified radiation with the spectra which is substantially as narrow as the spectra of the slave radiation.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: May 15, 2012
    Assignee: IPG Photonics Corporation
    Inventors: Valentin P. Gapontsev, Andrei Babushkin, Nicholai Platonov
  • Fiber laser system
    Patent number: 7848368
    Abstract: A powerful fiber laser system is configured with at least one large-area multi-clad rare-earth doped fiber, which is configured with a MM core capable of propagating a single mode laser emission at a first wavelength, and with at least one pumping assembly capable of generating an optical pump output at a wavelength shorter than the first wavelength of the rare-earth doped fiber. The pumping assembly has a plurality SM fiber lasers coupled to a SM-MM combiner which is operative to lunch the pump output into the cladding of the rare-earth doped fiber so that the powerful fiber laser system is operative to deliver a power of up to 20 kW.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: December 7, 2010
    Assignee: IPG Photonics Corporation
    Inventors: Valentin P. Gapontsev, Valentin Fomin, Nicholai Platonov
  • Apparatus and method for generating high power optical pulses and narrow spectrum by single mode fiber laser
    Publication number: 20100189136
    Abstract: A laser system for effective injection seeding is configured with a master oscillator lasing a narrowband seed radiation which is characterized by a single longitudinal master mode injected into a slave oscillator so that the latter generates a broadband slave radiation with a dominant slave mode and side slave modes. The slave radiation is coupled into an input of a SM fiber laser amplifier operative to output an amplified radiation with the spectra which is substantially as narrow as the spectra of the slave radiation.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 29, 2010
    Inventors: Valentin P. Gapontsev, Andrei Babushkin, Nicholai Platonov
  • FIBER LASER SYSTEM
    Publication number: 20100002730
    Abstract: A powerful fiber laser system is configured with at least one large-area multi-clad rare-earth doped fiber, which is configured with a MM core capable of propagating a single mode laser emission at a first wavelength, and with at least one pumping assembly capable of generating an optical pump output at a wavelength shorter than the first wavelength of the rare-earth doped fiber. The pumping assembly has a plurality SM fiber lasers coupled to a SM-MM combiner which is operative to lunch the pump output into the cladding of the rare-earth doped fiber so that the powerful fiber laser system is operative to deliver a power of up to 20 kW.
    Type: Application
    Filed: March 26, 2009
    Publication date: January 7, 2010
    Inventors: Valentin P. Gapontsev, Valentin Fomin, Nicholai Platonov