Patents by Inventor Dean E. Berlin

Dean E. Berlin 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).

  • Waveguides such as SiGeC waveguides and method of fabricating the same
    Patent number: 6905542
    Abstract: A waveguide structure and method of fabricating the same, the method comprising forming a first graded layer on a substrate, wherein the first graded layer comprises a first and a second optical material, and a lattice constant adjusting material, wherein the concentration of the second optical material increases with the height of the first graded layer and the concentration of the lattice constant adjusting material varies in proportion to the second optical material; and forming a second graded layer, the second graded layer comprising the first and second optical materials, and a lattice constant adjusting material, wherein the concentration of the second optical material decreases with the height of the second graded layer and the concentration of the lattice constant adjusting material varies in proportion to the second optical material.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: June 14, 2005
    Inventors: Arkadii V. Samoilov, Dean E. Berlin
  • Waveguides such as SiGeC waveguides and method of fabricating the same
    Publication number: 20020174827
    Abstract: A waveguide structure and method of fabricating the same, the method comprising forming a first graded layer on a substrate, wherein the first graded layer comprises a first and a second optical material, and a lattice constant adjusting material, wherein the concentration of the second optical material increases with the height of the first graded layer and the concentration of the lattice constant adjusting material varies in proportion to the second optical material; and forming a second graded layer, the second graded layer comprising the first and second optical materials, and a lattice constant adjusting material, wherein the concentration of the second optical material decreases with the height of the second graded layer and the concentration of the lattice constant adjusting material varies in proportion to the second optical material.
    Type: Application
    Filed: December 11, 2001
    Publication date: November 28, 2002
    Inventors: Arkadii V. Samoilov, Dean E. Berlin