Patents by Inventor D. Bruce Nichols

D. Bruce Nichols 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).

  • Optical tapped delay line
    Patent number: 6608721
    Abstract: An OTDL device in accordance with the present invention is a method for and device for spatially resolving the wavelengths in an optical signal, i.e., channelizing or demultiplexing. The device is based on a tapped optical delay line.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: August 19, 2003
    Assignee: Essex Corporation
    Inventors: Terry M. Turpin, Fred F. Froehlich, D. Bruce Nichols
  • Method and apparatus for precision wavelength stabilization in fiber optic communication systems using an optical tapped delay line
    Publication number: 20020154662
    Abstract: A method and apparatus for precision stabilization in optical communication systems, characterized by an optical tapped delay line which resolves multiple wavelength signals having extremely narrow wavelength spacing. The invention has particular utility in future DWDM systems having channel spacing at or below 25 GHz. Laser output wavelengths are alternatively or simultaneously locked, tuned or monitored depending upon the embodiments selected.
    Type: Application
    Filed: March 19, 2002
    Publication date: October 24, 2002
    Inventors: Terry M. Turpin, D. Bruce Nichols