Patents by Inventor Byeoung-Su Yoo

Byeoung-Su Yoo 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: 5554061
    Abstract: The present invention is a vertical resonant surface-emitting laser, and more particularly, a method for making a micro-laser that can be emitted to the upper surface of resonance structures by forming electrodes on the side surface of the resonance structures. By forming the electrodes injecting the current to the active layer on the side surface of resonators, the electrodes may be formed more easily on the fine micro-laser. Moreover, the current is more efficiently injected to the inside the active layer due to the side electrode surrounding an upper glass layer and emitter, and the laser may be operated even with a smaller start current, and serial resistance of the resonators may be reduced.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: September 10, 1996
    Assignee: Electronics & Telecommunications Research Institute
    Inventors: Hyo-Hoon Park, Min-Soo Park, Byeoung-Su Yoo