Patents by Inventor Craig H. Price

Craig H. Price 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 and apparatus for optical signal processing using an optical tapped delay line
    Patent number: 7509048
    Abstract: An Optical Tapped Delay Line (OTDL), which resolves multiple wavelength signals having extremely narrow wavelength spacing, is combined with other known optical devices to provide a wide variety of optical signal processing applications, including: multiplexing and de-multiplexing a multi-channel signal; adding a signal to, or dropping a signal from, a multi-channel optical signal; specialized coding processing such as generating code division multiple access signals; wavelength locking (stabilizing) a signal; filtering a signal; and analyzing and monitoring a signal spectrum. The OTDL spatially separates individual channels to allow separate processing on each channel. Fixed and tunable embodiments are identified in appropriate cases. Bulk, hybrid, and integrated optical embodiment and methods of fabrication are described, as are curved self-focusing and evanescent embodiments of OTDL devices.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: March 24, 2009
    Assignee: Essex Corporation
    Inventors: Terry M. Turpin, Craig H. Price, Fred F. Froelich, Bruce D. Nichols, James L. Lafuse, Keith R. Frampton
  • Method and apparatus for optical signal processing using an optical tapped delay line
    Publication number: 20030128917
    Abstract: An Optical Tapped Delay Line (OTDL), which resolves multiple wavelength signals having extremely narrow wavelength spacing, is combined with other known optical devices to provide a wide variety of optical signal processing applications, including: multiplexing and de-multiplexing a multi-channel signal; adding a signal to, or dropping a signal from, a multi-channel optical signal; specialized coding processing such as generating code division multiple access signals; wavelength locking (stabilizing) a signal; filtering a signal; and analyzing and monitoring a signal spectrum. The OTDL spatially separates individual channels to allow separate processing on each channel. Fixed and tunable embodiments are identified in appropriate cases. Bulk, hybrid, and integrated optical embodiment and methods of fabrication are described, as are curved self-focusing and evanescent embodiments of OTDL devices.
    Type: Application
    Filed: July 22, 2002
    Publication date: July 10, 2003
    Inventors: Terry M. Turpin, Craig H. Price, Fred F. Froelich, Bruce D. Nichols, James L. Lafuse, Keith Frampton