Patents by Inventor Tien Pei Lee

Tien Pei Lee 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).

  • Photonic integrated circuit (PIC) and method for making same
    Patent number: 6788721
    Abstract: A photonic integrated circuit including: at least one photonic component being suitable for operation with a plurality of photons and including an operational material having a bandgap energy close to the energy of the photons; and, at least one photonic component being suitable for operation with the plurality of photons, including an operational material having a bandgap energy substantially higher than the photons and being adjacent to the at least one photonic component including an operational material having a bandgap energy close to the energy of the photons. The at least one photonic component including an operational material having a bandgap energy substantially higher than the photons includes at least one amorphous silicon based alloy material.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: September 7, 2004
    Assignee: Sarnoff Corporation
    Inventors: Liyou Yang, Ralph Doud Whaley, Tien Pei Lee
  • Photonic integrated circuit (PIC) and method for making same
    Publication number: 20020176467
    Abstract: A photonic integrated circuit including: at least one photonic component being suitable for operation with a plurality of photons and including an operational material having a bandgap energy close to the energy of the photons; and, at least one photonic component being suitable for operation with the plurality of photons, including an operational material having a bandgap energy substantially higher than the photons and being adjacent to the at least one photonic component including an operational material having a bandgap energy close to the energy of the photons. The at least one photonic component including an operational material having a bandgap energy substantially higher than the photons includes at least one amorphous silicon based alloy material.
    Type: Application
    Filed: April 26, 2002
    Publication date: November 28, 2002
    Inventors: Liyou Yang, Ralph Doud Whaley, Tien Pei Lee
  • Miniature integrated optical beam splitter
    Patent number: 4888785
    Abstract: A miniature integrated optical beam splitter comprises a pair of perpendicular intersecting ridge waveguides and a groove extending at an angle of 45.degree. across the intersection of the waveguides, the depth of the groove extending below the ridge and into the waveguide layer to obtain the desired percentage of beam splitting.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: December 19, 1989
    Assignee: Bell Communications Research, Inc.
    Inventor: Tien-Pei Lee