Patents by Inventor Dmitri Simanovski

Dmitri Simanovski 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).

  • OPTICAL PARAMETRIC OSCILLATOR PUMPED BY FEMTOSECOND THIN-DISK LASER
    Publication number: 20140009821
    Abstract: Pulses from a mode-locked Yb-doped laser (12) are spectrally broadened in an optical fiber (28), and temporally compressed in a grating compressor (32), then frequency-doubled (34) and used to pump an optical parametric oscillator (OPO) (40). The OPO output is tunable over a wavelength range from about 600 nm to about 1100 nm. Mode-locking in the Yb-doped laser (12) is accomplished with a SESAM (14) or by Kerr-lens mode-locking with a Kerr medium (82) and a hard aperture (84).
    Type: Application
    Filed: February 1, 2012
    Publication date: January 9, 2014
    Applicant: Coherent, Inc.
    Inventors: Norman Hodgson, Dmitri Simanovski, Andrei Starodoumov
  • Optical parametric oscillator pumped by femtosecond thin-disk laser
    Patent number: 8477410
    Abstract: Pulses from a mode-locked Yb-doped laser are spectrally broadened, and temporally compressed, then frequency-doubled and used to pump an optical parametric oscillator (OPO). The OPO output is tunable over a wavelength range from about 600 nm to about 1100 nm.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: July 2, 2013
    Assignee: Coherent, Inc.
    Inventors: Norman Hodgson, Dmitri Simanovski, Andrei Starodoumov
  • Frequency-tripled fiber MOPA
    Patent number: 8373924
    Abstract: Fundamental-wavelength pulses from a fiber a laser are divided into three or more pulse portions and the three or more portions are separately amplified. Two or more of the amplified fundamental-wavelength pulse-portions are combined and frequency-doubled. The frequency doubled portion is sum-frequency mixed with one or more of the other amplified fundamental wavelength pulse-portions to provide third-harmonic radiation pulses.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: February 12, 2013
    Assignee: Coherent, Inc.
    Inventors: Andrei Starodoumov, Norman Hodgson, Dmitri Simanovski
  • FREQUENCY-TRIPLED FIBER MOPA
    Publication number: 20120300287
    Abstract: Fundamental-wavelength pulses from a fiber a laser are divided into three or more pulse portions and the three or more portions are separately amplified. Two or more of the amplified fundamental-wavelength pulse-portions are combined and frequency-doubled. The frequency doubled portion is sum-frequency mixed with one or more of the other amplified fundamental wavelength pulse-portions to provide third-harmonic radiation pulses.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Applicant: Coherent, Inc.
    Inventors: Andrei Starodoumov, Norman Hodgson, Dmitri Simanovski
  • OPTICAL PARAMETRIC OSCILLATOR PUMPED BY FEMTOSECOND THIN-DISK LASER
    Publication number: 20120200912
    Abstract: Pulses from a mode-locked Yb-doped laser are spectrally broadened, and temporally compressed, then frequency-doubled and used to pump an optical parametric oscillator (OPO). The OPO output is tunable over a wavelength range from about 600 nm to about 1100 nm.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 9, 2012
    Applicant: Coherent, Inc.
    Inventors: Norman Hodgson, Dmitri Simanovski, Andrei Starodoumov
  • SHORT-PULSE FIBER-LASER
    Publication number: 20120147908
    Abstract: A mode-locked fiber laser has a resonator including a gain-fiber, a mode-locking element, and a spectrally-selective dispersion compensating device. The resonator can be a standing-wave resonator or a traveling-wave resonator. The dispersion compensating device includes only one diffraction grating combined with a lens and a minor to provide a spatial spectral spread. The numerical aperture of the gain-fiber selects which portion of the spectral spread can oscillate in the resonator.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: Coherent, Inc.
    Inventors: Dmitri SIMANOVSKI, Andrei STARODOUMOV
  • Frequency-tripled fiber MOPA
    Patent number: 7920606
    Abstract: Fundamental-wavelength pulses from a fiber a laser are divided into two portions and the two portions are separately amplified. One of the amplified fundamental-wavelength pulse-portions is frequency-doubled. The frequency doubled portion is sum-frequency mixed with the other amplified fundamental wavelength pulse-portions to provide third-harmonic radiation pulses.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: April 5, 2011
    Assignee: Coherent, Inc.
    Inventors: Andrei Starodoumov, Norman Hodgson, Dmitri Simanovski, R. Russel Austin
  • FREQUENCY-TRIPLED FIBER MOPA
    Publication number: 20100150183
    Abstract: Fundamental-wavelength pulses from a fiber a laser are divided into two portions and the two portions are separately amplified. One of the amplified fundamental-wavelength pulse-portions is frequency-doubled. The frequency doubled portion is sum-frequency mixed with the other amplified fundamental wavelength pulse-portions to provide third-harmonic radiation pulses.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventors: Andrei Starodoumov, Norman Hodgson, Dmitri Simanovski, R. Russel Austin