Patents by Inventor Dan W. Nightingale

Dan W. Nightingale 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).

  • Publication number: 20020109907
    Abstract: A dynamic slope compensation filter (DSCF) provides dynamic gain slope modification for an optical amplifier. The optical amplifier provides amplification for a plurality of wavelengths within an amplification band. The filter includes an optical waveguide core, an optical waveguide cladding and an optical waveguide overcladding. The optical waveguide core guides a plurality of wavelengths. The core has a core refractive index and includes at least one coupler that functions to couple at least a portion of the plurality of wavelengths from the core to the cladding. The optical waveguide cladding surrounds the core and has a cladding refractive index that is less than the core refractive index. The optical waveguide overcladding surrounds at least a portion of the cladding and has a variable overcladding refractive index that is adjustable within a range that is less than and greater than the cladding refractive index.
    Type: Application
    Filed: November 30, 2000
    Publication date: August 15, 2002
    Inventors: Paul Chen, Glenn E. Kohnke, Yongqian Liu, Dan W. Nightingale