Patents by Inventor Laurent Kling

Laurent Kling 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).

  • Controlling birefringence in an optical waveguide
    Patent number: 6597852
    Abstract: A method of controlling birefringence in a rib waveguide structure manufactured in silicon is describes. The rib waveguide structure comprises an elongated rib element having an upper face and two side faces. According to the method, a blanket layer of silicon nitride is formed to a predetermined thickness over the rib waveguide structure directly abutting the upper face and side faces. The thickness of the blanket layer is selected to control birefringence. A silicon rib waveguide structure incorporating such a layer and a evanescent coupler structure are also described.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 22, 2003
    Assignee: Bookham Technology plc
    Inventor: Laurent Kling
  • Controlling birefringence in an optical waveguide
    Publication number: 20010024559
    Abstract: A method of controlling birefringence in a rib waveguide structure manufactured in silicon is describes. The rib waveguide structure comprises an elongated rib element having an upper face and two side faces. According to the method, a blanket layer of silicon nitride is formed to a predetermined thickness over the rib waveguide structure directly abutting the upper face and side faces. The thickness of the blanket layer is selected to control birefringence. A silicon rib waveguide structure incorporating such a layer and a evanescent coupler structure are also described.
    Type: Application
    Filed: December 15, 2000
    Publication date: September 27, 2001
    Inventor: Laurent Kling