Patents by Inventor Ryan N. Lang

Ryan N. Lang 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).

  • Coupled mode arrayed waveguide grating
    Patent number: 7260291
    Abstract: An AWG device includes a plurality of arrayed waveguides positioned close to each other. An input signal excites one of these coupled waveguides and the power is then transferred to all of the arrayed waveguides so there are enough degrees of freedom in the device to achieve any desired distribution.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: August 21, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Eleanor L. Haus, legal representative, Ryan N. Lang, Hermann A. Haus, deceased