Patents Assigned to Mykola KULISHOV
  • Pi -Shifted filters based on electro-optically induced waveguide gratings
    Publication number: 20030235368
    Abstract: Disclosed is a &pgr;-shifted optical grating device based on electro-optically induced waveguide gratings. The waveguide has a core and a cladding where the core or the cladding is made of an electro-optic material. A plurality of electrodes are placed on one side of the waveguide and at least one electrode is placed on the other side of the waveguide. A voltage pattern is selectively applied to the electrode so that the pattern induces at least one &pgr;-shifted grating in the waveguide when the pattern is applied.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 25, 2003
    Applicants: ADTEK PHOTOMASK INC.; and, Mykola KULISHOV
    Inventors: Mykola Kulishov, Xavier Daxhelet