Patents by Inventor Rolf Biekert

Rolf Biekert 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).

  • Fiber laser
    Patent number: 7542488
    Abstract: An optical fiber for producing laser radiation at a characteristic wavelength includes a first multimode core region and an active region embedded within the core region for producing radiation at the characteristic wavelength when pumped by pump radiation. The core region is adapted for guiding the laser radiation in a longitudinal direction of the fiber and is adapted for guiding pump radiation. The active region has a sufficiently small transverse dimension such that radiation produced in the active region is not confined to the active region.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: June 2, 2009
    Assignee: Trumpf, Inc.
    Inventors: Holger Schlueter, Rolf Biekert
  • Side-pumped fiber laser
    Patent number: 7161966
    Abstract: An optical fiber includes a radial axis, a longitudinal axis, a first window surface adapted for receiving pump radiation and transmitting the pump radiation into the optical fiber, a second surface adapted for totally internally reflecting pump radiation received within the optical fiber, and an active region within the optical fiber for generating radiation at a characteristic wavelength when pumped with pump radiation. A normal direction of the first window surface is not parallel to a direction of the radial axis at the first window surface.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: January 9, 2007
    Assignee: Trumpf, Inc.
    Inventors: Holger Schlueter, Rolf Biekert
  • Side-pumped fiber laser
    Publication number: 20040233942
    Abstract: An optical fiber includes a radial axis, a longitudinal axis, a first window surface adapted for receiving pump radiation and transmitting the pump radiation into the optical fiber, a second surface adapted for totally internally reflecting pump radiation received within the optical fiber, and an active region within the optical fiber for generating radiation at a characteristic wavelength when pumped with pump radiation. A normal direction of the first window surface is not parallel to a direction of the radial axis at the first window surface.
    Type: Application
    Filed: January 26, 2004
    Publication date: November 25, 2004
    Inventors: Holger Schlueter, Rolf Biekert
  • Fiber laser
    Publication number: 20040218635
    Abstract: An optical fiber for producing laser radiation at a characteristic wavelength includes a first multimode core region and an active region embedded within the core region for producing radiation at the characteristic wavelength when pumped by pump radiation. The core region is adapted for guiding the laser radiation in a longitudinal direction of the fiber and is adapted for guiding pump radiation. The active region has a sufficiently small transverse dimension such that radiation produced in the active region is not confined to the active region.
    Type: Application
    Filed: January 26, 2004
    Publication date: November 4, 2004
    Inventors: Holger Schlueter, Rolf Biekert