Patents by Inventor Min Cheol Oh

Min Cheol Oh 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).

  • TE-pass optical waveguide polarizer using elecro-optic polymers
    Patent number: 5835644
    Abstract: An optical waveguide polarizer having a transverse electric wave pass mode. The waveguide polarizer includes an upper cladding layer, a core layer, and a lower cladding layer arranged in a vertically stacked relationship. The core layer includes an electro-optic polymer. The waveguide polarizer has a plurality of electrodes disposed on the upper and lower cladding layers and along both sides of a longitudinal region in the core layer such that the plurality of electrodes form electric fields in a direction substantially perpendicular to the core layer and along both sides of the longitudinal region so that a transverse electric wave mode is guided through the longitudinal region and a transverse magnetic wave mode is substantially extinguished in the longitudinal region.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: November 10, 1998
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Min-Cheol Oh, Wol-Yon Hwang, Jang-Joo Kim