Patents by Inventor Edwin Yue Bun Pun

Edwin Yue Bun Pun 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
    Patent number: 9950455
    Abstract: A dielectric waveguide comprising a dielectric probe at each end, wherein the dielectric probes are arranged to transfer energy.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 24, 2018
    Assignee: City University of Hong Kong
    Inventors: Sai Tak Chu, Jacky Ping Yuen Tsui, Peng Zhou, Edwin Yue Bun Pun
  • WAVEGUIDES
    Publication number: 20160031170
    Abstract: A dielectric waveguide comprising a dielectric probe at each end, wherein the dielectric probes are arranged to transfer energy.
    Type: Application
    Filed: August 21, 2015
    Publication date: February 4, 2016
    Inventors: Sai Tak Chu, Jacky Ping Yuen Tsui, Peng Zhou, Edwin Yue Bun Pun
  • WAVEGUIDES
    Publication number: 20150008990
    Abstract: A dielectric waveguide comprising a dielectric probe at each end, wherein the dielectric probes are arranged to transfer energy.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Inventors: Sai Tak Chu, Jacky Ping Yuen Tsui, Peng Zhou, Edwin Yue Bun Pun
  • Method for fabricating buried ion-exchanged waveguides using field-assisted annealing
    Patent number: 8312743
    Abstract: A method for forming buried ion-exchanged waveguides involves a two-step process. In a first step a waveguide is formed at the surface of a substrate using an ion-exchange technique. After formation of the waveguide, a field-assisted annealing is carried out to move the waveguide away from the surface of the substrate so that it is buried in the substrate. Exemplary field-assisted annealing is carried out at a temperature close to the ion-exchange temperature ±10° C. to optimize results.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: November 20, 2012
    Assignee: City University of Hong Kong
    Inventors: Edwin Yue Bun Pun, Ke Liu
  • Doped polymeric optical waveguide amplifiers
    Patent number: 7826133
    Abstract: A polymer-based optical waveguide amplifier comprises a polymer host material doped with rare earth ions wherein the polymer host material is a material that functions as a resist in a direct patterning technique. The polymer host material can be epoxy novalac resin doped with Er3+ ions and Yb3+ ions, and the direct patterning comprises electron beam direct writing or UV printing.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: November 2, 2010
    Assignee: City University of Hong Kong
    Inventors: Edwin Yue Bun Pun, Wing Han Wong