Patents by Inventor John Tsen-Tao Chen

John Tsen-Tao Chen 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: 6937804
    Abstract: A photonic switch according to the present invention may be formed using one of a selected group of non-linear optical materials. Each of the materials within this group has a refractive index that demonstrates a substantial peak as a function of wavelength, where the peak occurs at a wavelength distinct from the wavelength of the input signal. A method of producing a photonic switch according to the present invention includes fabricating source and drain waveguides using micro-molding or micro-contact printing processes, or MIMIC (micro-molding in capillaries) of a UV-curable polymer. If desired, a gate waveguide may also be formed in part by these processes. The photonic switch also includes a photonic crystal formed from non-linear optical material, which may be formed, for example, using a block copolymer and nanoparticle composite in a MIMIC or ?fluidics process. Such a process may employ a functionalized mold material to align the blocks.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: August 30, 2005
    Assignee: Surface Logix Inc.
    Inventors: Christopher McCoy, John Tsen-Tao Chen
  • Patent number: 6885790
    Abstract: A photonic switch may be formed using one of a selected group of non-linear optical materials. Each of the materials within this group has a refractive index that demonstrates a substantial peak as a function of wavelength. The photonic switch includes a positive gain, and thus acts as a photonic transistor. In addition, a photonic switch is formed so that a gate signal is applied in a direction that is substantially perpendicular to the direction of the input signal so that there is no effective contamination of the input signal by the gate signal affecting the output signal.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: April 26, 2005
    Assignee: Surface Logix Inc.
    Inventors: Christopher McCoy, John Tsen-Tao Chen
  • Publication number: 20040046167
    Abstract: A photonic switch according to the present invention may be formed using one of a selected group of non-linear optical materials. Each of the materials within this group has a refractive index that demonstrates a substantial peak as a function of wavelength, where the peak occurs at a wavelength distinct from the wavelength of the input signal. A method of producing a photonic switch according to the present invention includes fabricating source and drain waveguides using micro-molding or micro-contact printing processes, or MIMIC (micro-molding in capillaries) of a UV-curable polymer. If desired, a gate waveguide may also be formed in part by these processes. The photonic switch also includes a photonic crystal formed from non-linear optical material, which may be formed, for example, using a block copolymer and nanoparticle composite in a MIMIC or &mgr;fluidics process. Such a process may employ a functionalized mold material to align the blocks.
    Type: Application
    Filed: January 6, 2003
    Publication date: March 11, 2004
    Inventors: Christopher H. McCoy, John Tsen-Tao Chen
  • Publication number: 20030133677
    Abstract: A photonic switch may be formed using one of a selected group of non-linear optical materials. Each of the materials within this group has a refractive index that demonstrates a substantial peak as a function of wavelength. The photonic switch includes a positive gain, and thus acts as a photonic transistor. In addition, a photonic switch is formed so that a gate signal is applied in a direction that is substantially perpendicular to the direction of the input signal so that there is no effective contamination of the input signal by the gate signal affecting the output signal.
    Type: Application
    Filed: November 13, 2002
    Publication date: July 17, 2003
    Inventors: Christopher McCoy, John Tsen-Tao Chen