Patents by Inventor Sergei Dolgy

Sergei Dolgy 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).

  • SINGLE LONGITUDINAL MODE LASER DIODE SYSTEM
    Publication number: 20200266607
    Abstract: A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device. The feedback system may include a wavelength discriminator, an optical detector, a microprocessor, and a laser controller. Such a semiconductor laser diode system may be used to produce laser light having coherence length, wavelength precision, and wavelength stability that is equivalent to that of a gas laser. Accordingly, such a semiconductor laser diode system may be used in place of a traditional gas laser.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 20, 2020
    Applicant: NECSEL INTELLECTUAL PROPERTY, INC.
    Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban, Sergei Dolgy
  • SINGLE LONGITUDINAL MODE LASER DIODE SYSTEM
    Publication number: 20180034239
    Abstract: A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device. The feedback system may include a wavelength discriminator, an optical detector, a microprocessor, and a laser controller. Such a semiconductor laser diode system may be used to produce laser light having coherence length, wavelength precision, and wavelength stability that is equivalent to that of a gas laser. Accordingly, such a semiconductor laser diode system may be used in place of a traditional gas laser.
    Type: Application
    Filed: September 28, 2017
    Publication date: February 1, 2018
    Applicant: NECSEL INTELLECTUAL PROPERTY, INC.
    Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban, Sergei Dolgy
  • SINGLE LONGITUDINAL MODE LASER DIODE SYSTEM
    Publication number: 20160134080
    Abstract: A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device. The feedback system may include a wavelength discriminator, an optical detector, a microprocessor, and a laser controller. Such a semiconductor laser diode system may be used to produce laser light having coherence length, wavelength precision, and wavelength stability that is equivalent to that of a gas laser. Accordingly, such a semiconductor laser diode system may be used in place of a traditional gas laser.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 12, 2016
    Applicant: PD-LD, INC.
    Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban, Sergei Dolgy
  • Methods for manufacturing volume Bragg grating elements
    Patent number: 7792003
    Abstract: Methods for recording volume Bragg grating structures having a target wavelength are disclosed. Such a method may include providing a photosensitive recording medium, bringing a first face of the recording medium into contact with a face of a prism, the prism being made of a material that is transparent at a recording wavelength, and recording a Bragg grating onto the recording medium by exposing the prism to an incident light wave at the recording wavelength.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: September 7, 2010
    Assignee: PD-LD, Inc.
    Inventors: Boris Leonidovich Volodin, Sergei Dolgy, Vladimir S. Ban
  • Methods For Manufacturing Volume Bragg Grating Elements
    Publication number: 20080225672
    Abstract: Methods for recording volume Bragg grating structures having a target wavelength are disclosed. Such a method may include providing a photosensitive recording medium, bringing a first face of the recording medium into contact with a face of a prism, the prism being made of a material that is transparent at a recording wavelength, and recording a Bragg grating onto the recording medium by exposing the prism to an incident light wave at the recording wavelength.
    Type: Application
    Filed: May 27, 2008
    Publication date: September 18, 2008
    Applicant: PD-LD, INC.
    Inventors: Boris Leonidovich Volodin, Sergei Dolgy, Vladimir Sinisa Ban
  • Methods for manufacturing volume Bragg grating elements
    Patent number: 7391703
    Abstract: Methods for recording volume Bragg grating structures having a target wavelength are disclosed. Such a method may include providing a photosensitive recording medium, bringing a first face of the recording medium into contact with a face of a prism, the prism being made of a material that is transparent at a recording wavelength, and recording a Bragg grating onto the recording medium by exposing the prism to an incident light wave at the recording wavelength.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: June 24, 2008
    Assignee: PD-LD, Inc.
    Inventors: Boris Leonidovich Volodin, Sergei Dolgy, Vladimir Sinisa Ban
  • Methods for manufacturing volume bragg grating elements
    Publication number: 20050099930
    Abstract: Methods for recording volume Bragg grating structures having a target wavelength are disclosed. Such a method may include providing a photosensitive recording medium, bringing a first face of the recording medium into contact with a face of a prism, the prism being made of a material that is transparent at a recording wavelength, and recording a Bragg grating onto the recording medium by exposing the prism to an incident light wave at the recording wavelength.
    Type: Application
    Filed: September 23, 2004
    Publication date: May 12, 2005
    Inventors: Boris Volodin, Sergei Dolgy, Vladimir Ban