Patents by Inventor Jorg Happ

Jorg Happ 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 fiber transmission link having passive, directionally dependent attenuation
    Patent number: 6941048
    Abstract: To provide directionally dependent attenuation for an optical information transmission link using simple means without the use of an active component, it is proposed to couple two optical waveguides (1, 2) having different core diameters to one another, the core diameter of the second fiber (2) being at least six times greater than the core diameter of the first fiber (1). In this manner, it is achieved that the conduction of light signals in a predefined direction is attenuated by at least the factor 30, while, on the other hand, the light propagating in the reverse direction, is attenuated very slightly.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: September 6, 2005
    Assignee: Deutsche Telekom AG
    Inventors: Wolfgang Dultz, Volker Maier, Jörg Happ, Werner Frank
  • Optical fiber transmission link having passive direction-dependent attenuation
    Publication number: 20030165297
    Abstract: To provide directionally dependent attenuation for an optical information transmission link using simple means without the use of an active component, it is proposed to couple two optical waveguides (1, 2) having different core diameters to one another, the core diameter of the second fiber (2) being at least six times greater than the core diameter of the first fiber (1). In this manner, it is achieved that the conduction of light signals in a predefined direction is attenuated by at least the factor 30, while, on the other hand, the light propagating in the reverse direction, is attenuated very slightly.
    Type: Application
    Filed: November 20, 2002
    Publication date: September 4, 2003
    Inventors: Wolfgang Dultz, Volker Maier, Jorg Happ, Werner Frank