Patents by Inventor Donald L. Knasel

Donald L. Knasel 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).

  • Low skew optical fiber ribbons
    Patent number: 5768460
    Abstract: An optical fiber ribbon comprising a plurality of optical fibers secured or embedded substantially parallel to one another, fibers are selected and processed such that the skew in optical propagation time for signals transmitted over said plurality of optical fibers is minimized. The optical fibers are selected from the same pull and each of said optical fibers has a modal bandwidth greater than or equal to 800 Mhz.km at an operating wavelength of 1300 nm. The invention extends the practical applications of optical fiber ribbons to include synchronous parallel transmission with an aggregate data-rate.times.distance product of greater than 10 Gbit/sec.km.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: June 16, 1998
    Assignee: Siecor Corporation
    Inventors: Anthony Frederick John Levi, Markus A. Giebel, Donald L. Knasel, Greg A. Lochkovic
  • Method and apparatus for analyzing optical waveguide cane
    Patent number: 5396323
    Abstract: A method and apparatus for non-destructive analysis of canes and preforms which contain "striae" in which the cane or preform is transversely illuminated with a beam of light at a wavelength which is long enough to substantially eliminate the effect of striae resulting from variations in dopant concentration.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: March 7, 1995
    Assignee: Corning Incorporated
    Inventors: John S. Abbott, III, Donald L. Knasel, David A. Pastel, Bruce W. Reding, Gregory E. Smith