Patents by Inventor Kang-Yi Liou

Kang-Yi Liou 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).

  • Method for preparation of monolithically integrated devices
    Patent number: 5432123
    Abstract: A monolithically integrated electroabsorption modulator/optical amplifier is described which is prepared using a lateral bandgap control technique with a planar III-V compund semiconductor substrate. The described device evidences a bandgap shift in excess of 60 nanometers, so indicating its applicability for integration of modulators and lasers or amplifiers. The device is fabricated by atmospheric pressure metal organic condensed vapor deposition growth of gallium indium arsenise/gallium indium aresenide phosphide strained quantum wells on ridges deposited on the substrate.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: July 11, 1995
    Assignee: AT&T Corp.
    Inventors: Andrew G. Dentai, Fumio Koyama, Kang-Yi Liou