Patents by Inventor Dimitra Ketzaki

Dimitra Ketzaki 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).

  • Patent number: 11204326
    Abstract: The invention relates to a device comprising a first optical Mach-Zehnder interferometric sensor (MZI1) with a large FSR, wherein a plasmonic waveguide (107) thin-film or hybrid slot, is incorporated as transducer element planar integrated on Si3N4 photonic waveguides and a second optical interferometric Mach-Zehnder (MZI2), both comprising thermo-optic phase shifters (104, 106) for optimally biasing said MZI sensor (MZI1) and MZI as variable optical attenuator VOA.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: December 21, 2021
    Assignees: Aristotle University of Thessaloniki-Research Committee E.L.K.E, AMO GmbH Gesellschaft für Angewandte Mikro- und Optoelektronic Mit Beschränkter Haftung
    Inventors: Nikolaos Pleros, Dimitrios Tsiokos, Georgios Ntampos, Dimitra Ketzaki, Anna-Lena Giesecke
  • Publication number: 20200003696
    Abstract: The invention relates to a device comprising a first optical Mach-Zehnder interferometric sensor (MZI1) with a large FSR, wherein a plasmonic waveguide (107) thin-film or hybrid slot, is incorporated as transducer element planar integrated on Si3N4 photonic waveguides and a second optical interferometric Mach-Zehnder (MZI2), both comprising thermo-optic phase shifters (104, 106) for optimally biasing said MZI sensor (MZI1) and MZI as variable optical attenuator VOA.
    Type: Application
    Filed: February 20, 2018
    Publication date: January 2, 2020
    Inventors: Nikolaos Pleros, Dimitrios Tsiokos, Georgios Ntampos, Dimitra Ketzaki, Anna-Lena Giesecke