Patents by Inventor STEPHAN FRANK WIELANDY

STEPHAN FRANK WIELANDY 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).

  • Widely and rapidly tunable multi-wavelength laser
    Patent number: 10186826
    Abstract: The present application describes a method for controlling an output of a laser apparatus. The method includes a step of receiving, at the first multiplexer, an initial wavelength from a pump. The method also includes a step of receiving first and second seed wavelengths from a first and a second seed source, respectively. The method also includes a step of sending an output of the combiner to a first fiber. The method includes a step of combining, at a second multiplexer, an output of the first fiber. The method also includes a step of extracting the initial wavelength with the second multiplexer. Further, the method includes a step of sending the first and seed wavelengths to a second fiber.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 22, 2019
    Assignee: LGS Innovations LLC
    Inventor: Stephan Frank Wielandy
  • WIDELY AND RAPIDLY TUNABLE MULTI-WAVELENGTH LASER
    Publication number: 20180166846
    Abstract: The present application describes a method for controlling an output of a laser apparatus. The method includes a step of receiving, at the first multiplexer, an initial wavelength from a pump. The method also includes a step of receiving first and second seed wavelengths from a first and a second seed source, respectively. The method also includes a step of sending an output of the combiner to a first fiber. The method includes a step of combining, at a second multiplexer, an output of the first fiber. The method also includes a step of extracting the initial wavelength with the second multiplexer. Further, the method includes a step of sending the first and seed wavelengths to a second fiber.
    Type: Application
    Filed: August 24, 2017
    Publication date: June 14, 2018
    Inventor: STEPHAN FRANK WIELANDY
  • Free-space optical communication system and method in scattering environments
    Patent number: 9960846
    Abstract: A free-space optical communication system is provided. The free-space optical communication system includes a transmitter configured to optically transmit data in a plurality of subcarrier signals over a free-space scattering medium. The free-space optical communication system includes a coherent receiver configured to receive the plurality of subcarrier signals and extract the transmitted data from the plurality of subcarrier signals after traversal over the free-space scattering medium.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: May 1, 2018
    Assignee: LGS INNOVATIONS LLC
    Inventors: Thomas Huntington Wood, Stephan Frank Wielandy, Andrew Russell Grant
  • Widely and rapidly tunable multi-wavelength laser
    Patent number: 9780521
    Abstract: The present application describes a multi wavelength apparatus. The apparatus includes a pump laser, a first seed laser and a second seed laser. Each of the first and second seed lasers had wavelengths longer than the pump laser. The apparatus also includes a first multiplexer. The apparatus also includes first and second controllers configured to respectively control outputs of the first and second seed lasers. The apparatus also includes a first fiber configured to receive an output of a first multiplexer. The apparatus also includes a second multiplexer configured to receive the output of the first fiber. The apparatus also includes a second fiber configured to receive the output of the second combiner. The second fiber can emit light at either the first seed wavelength or the second seed wavelength. The present application is also directed to a method for controlling an output of a laser apparatus.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 3, 2017
    Assignee: LGS INNOVATIONS LLC
    Inventor: Stephan Frank Wielandy
  • FREE-SPACE OPTICAL COMMUNICATION SYSTEM AND METHOD IN SCATTERING ENVIRONMENTS
    Publication number: 20170237485
    Abstract: A free-space optical communication system is provided. The free-space optical communication system includes a transmitter configured to optically transmit data in a plurality of subcarrier signals over a free-space scattering medium. The free-space optical communication system includes a coherent receiver configured to receive the plurality of subcarrier signals and extract the transmitted data from the plurality of subcarrier signals after traversal over the free-space scattering medium.
    Type: Application
    Filed: July 14, 2016
    Publication date: August 17, 2017
    Inventors: Thomas Huntington Wood, Stephan Frank Wielandy, Andrew Russell Grant
  • WIDELY AND RAPIDLY TUNABLE MULTI-WAVELENGTH LASER
    Publication number: 20170179673
    Abstract: The present application describes a multi wavelength apparatus. The apparatus includes a pump laser, a first seed laser and a second seed laser. Each of the first and second seed lasers had wavelengths longer than the pump laser. The apparatus also includes a first multiplexer. The apparatus also includes first and second controllers configured to respectively control outputs of the first and second seed lasers. The apparatus also includes a first fiber configured to receive an output of a first multiplexer. The apparatus also includes a second multiplexer configured to receive the output of the first fiber. The apparatus also includes a second fiber configured to receive the output of the second combiner. The second fiber can emit light at either the first seed wavelength or the second seed wavelength. The present application is also directed to a method for controlling an output of a laser apparatus.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventor: STEPHAN FRANK WIELANDY