Patents by Inventor Katrin Roessner

Katrin Roessner 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).

  • Sensor fiber having a multicore optical waveguide including fiber Bragg gratings
    Patent number: 9976880
    Abstract: A sensor fiber for the detection of changes of temperature, bending, and/or torsion includes a multicore optical waveguide with a fiber Bragg grating (FBG) structure. One embodiment contains at least two FBG cores and a surrounding cladding. The sensor fiber is characterized by one or more distinction and orientation means which produce a marker zone to assign and label each individual FBG core.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: May 22, 2018
    Assignee: S-fiber, GmbH
    Inventors: Lothar Brehm, Jurgen Rosenkranz, Otto Bernauer, Ralitsa Rosenow, Armin Landers, Katrin Roessner, Robert Hanf
  • Methods for making active laser fibers
    Patent number: 9255026
    Abstract: Methods for making active laser fibers include the production of an optical fiber with disturbed (or deviated) cylindrical symmetry on the glass surface of the fiber. The methods include a preform containing a central core made of glass. In one embodiment, the preform is circular and surrounded by additional glass rods and an outer glass jacket tube. In a first alternative embodiment, this preform is merged during fiber drawing. In a second alternative embodiment, the preform merged in a process forming a compact glass body with disturbed cylindrical symmetry. This compact preform is drawn into a fiber under conditions maintaining the disturbed cylindrical symmetry.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: February 9, 2016
    Assignee: j-fiber, GmbH
    Inventors: Jurgen Rosenkranz, Wolfgang Haemmerle, Lothar Brehm, Katrin Roessner, Robert Hanf
  • Sensor Fiber Having a Multicore Optical Waveguide Including Fiber Bragg Gratings
    Publication number: 20140029889
    Abstract: A sensor fiber for the detection of changes of temperature, bending, and/or torsion includes a multicore optical waveguide with a fiber Bragg grating (FBG) structure. One embodiment contains at least two FBG cores and a surrounding cladding. The sensor fiber is characterized by one or more distinction and orientation means which produce a marker zone to assign and label each individual FBG core.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 30, 2014
    Inventors: Lothar Brehm, Jurgen Rosenkranz, Otto Bernauer, Ralitsa Rosenow, Armin Landers, Katrin Roessner, Robert Hanf
  • Methods for Making Active Laser Fibers
    Publication number: 20130239623
    Abstract: Methods for making active laser fibers include the production of an optical fiber with disturbed (or deviated) cylindrical symmetry on the glass surface of the fiber. The methods include a preform containing a central core made of glass. In one embodiment, the preform is circular and surrounded by additional glass rods and an outer glass jacket tube. In a first alternative embodiment, this preform is merged during fiber drawing. In a second alternative embodiment, the preform merged in a process forming a compact glass body with disturbed cylindrical symmetry. This compact preform is drawn into a fiber under conditions maintaining the disturbed cylindrical symmetry.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 19, 2013
    Inventors: Jurgen Rosenkranz, Wolfgang Heammerle, Lothar Brehm, Katrin Roessner, Robert Hanf