Patents by Inventor Irt N. Duling, III

Irt N. Duling, III 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).

  • Apparatus and method for improving the frequency response of modulators based on the Sagnac interferometer
    Patent number: 6072919
    Abstract: An optical method and apparatus particularly useful as an intensity modulation system, in which two phase modulators are placed in the loop of a Sagnac interferometer. Selective placement of the modulators, and the amplitude of any modulation signal input to the modulators, varies the bandwidth and frequency response of the system. In a preferred embodiment, the ratio of the optical distances of the modulators from interferometric midpoint, and the ratio of modulation signal amplitudes, is about 3:1, which serves to broaden and flatten the frequency response of the system.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: June 6, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael L. Dennis, William K. Burns, Irt N. Duling, III, Robert P. Moeller