Patents by Inventor Dan Dalacu

Dan Dalacu 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).

  • Stress-induced control of polarization dependent properties in photonic devices
    Patent number: 7194177
    Abstract: In order to make a photonic device incorporating a waveguide, a waveguide is formed with a predetermined geometry. Birefringence is then controlled by determining the amount of stress induced within the waveguide.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: March 20, 2007
    Assignee: National Research Council of Canada
    Inventors: Dan-Xia Xu, Pavel Cheben, Dan Dalacu, Siegfried Janz
  • Stress-induced control of polarization dependent properties in photonic devices
    Publication number: 20050196114
    Abstract: In order to make a photonic device incorporating a waveguide, a waveguide is formed with a predetermined geometry. Birefringence is then controlled by determining the amount of stress induced within the waveguide.
    Type: Application
    Filed: September 29, 2004
    Publication date: September 8, 2005
    Applicant: National Research Council of Canada
    Inventors: Dan-Xia Xu, Pavel Cheben, Dan Dalacu, Siegfried Janz