Patents by Inventor Peng Lung-Han

Peng Lung-Han 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 bulk periodic poling of congruent grown ferro-electric nonlinear optical crystals by low electric field
    Patent number: 6295159
    Abstract: A new method is proposed and demonstrated effectively in reducing the coercive field and internal field in association with bulk periodical poling of the congruent grown ferro-electric nonlinear optical crystal. By adequate doping with zinc oxide, the coercive field required for achieving 180° domain reversal and the internal field associated with the non-stoichiometric point defects in undoped congruent grown ferro-electric nonlinear optical crystals can be reduced by an order of magnitude.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: September 25, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Peng Lung-Han, Lin Yi-Chin, Fang Yi-Chen