Patents by Inventor Joerg Wiedmann

Joerg Wiedmann 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).

  • Frequency changing device
    Patent number: 7983315
    Abstract: The invention relates to a frequency changing device comprising a laser having a waveguide and a nonlinear optical medium which changes the frequency of the light generated by the laser. It is provided that the waveguide of the laser at least adjacent to the exit facet of the laser runs at an angle with respect to the perpendicular to the exit facet, that the exit facet of the laser and the entrance facet of the nonlinear optical medium are arranged parallel to one another, and that the exit facet of the laser and the entrance facet of the nonlinear optical medium are oriented with respect to one another in such a way that the condition of Snell's law is met, i.e., nlaser sin(?laser)=nnonlinear optical medium sin(?nonlinear optical medium).
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: July 19, 2011
    Assignee: Eagley Ard Photonics GmbH
    Inventors: Joerg Wiedmann, Friedemann Scholz
  • FREQUENCY CHANGING DEVICE
    Publication number: 20090180499
    Abstract: The invention relates to a frequency changing device comprising a laser having a waveguide and a nonlinear optical medium which changes the frequency of the light generated by the laser. It is provided that the waveguide of the laser at least adjacent to the exit facet of the laser runs at an angle with respect to the perpendicular to the exit facet, that the exit facet of the laser and the entrance facet of the nonlinear optical medium are arranged parallel to one another, and that the exit facet of the laser and the entrance facet of the nonlinear optical medium are oriented with respect to one another in such a way that the condition of Snell's law is met, i.e., nlaser sin(?laser)=nnonlinear optical medium sin(?nonlinear optical medium).
    Type: Application
    Filed: January 15, 2009
    Publication date: July 16, 2009
    Applicant: EAGLEYARD PHOTONICS GMBH
    Inventors: Joerg WIEDMANN, Friedemann SCHOLZ
  • Photonic integrated circuit
    Patent number: 6775312
    Abstract: A photonic integrated circuit has a multi-wavelength laser array and an active waveguide coupler receiving outputs of the laser array. The active waveguide coupler facilitates high output power coupling of the outputs of the laser array to a single mode optical fiber.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: August 10, 2004
    Assignee: Quantum Devices, Inc.
    Inventors: Joerg Wiedmann, Mohammad A. Mazed, Richard Eden
  • Photonic integrated circuit
    Publication number: 20030214991
    Abstract: A photonic integrated circuit has a multi-wavelength laser array and an active waveguide coupler receiving outputs of the laser array. The active waveguide coupler facilitates high output power coupling of the outputs of the laser array to a single mode optical fiber.
    Type: Application
    Filed: May 15, 2002
    Publication date: November 20, 2003
    Inventors: Joerg Wiedmann, Mohammad A. Mazed, Richard C. Eden