Patents by Inventor Jörg Gehler

Jörg Gehler 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).

  • Trimmed integrated optical multi-beam interferometer
    Patent number: 6400872
    Abstract: For the trimming of an arrayed waveguide grating (1) of an integrated optical multi-beam interferometer which is comprised of a large number (N) of waveguides (i) at least one (j) of these waveguides (i) is treated over a region (Bj) along its optical path length (Lj) only by irradiation which changes its core refractive index (nj) A defined phase shift (&Dgr;&phgr;j) of the light signal guided in this waveguide (j) results thereby which leads to a long-lasting correction of the aberration of the interference pattern in the multi-beam interferometer.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: June 4, 2002
    Assignee: Alcatel
    Inventor: Jörg Gehler