Patents by Inventor Robert A. Cronkite

Robert A. Cronkite 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).

  • Phase-matchable, single-mode fiber-optic device
    Patent number: 4895422
    Abstract: A nonlinear fiber-optic device including a single mode optical fiber having a longitudinal axis, for transmitting light therethrough of a given wavelength, and having a core and a cladding layer, a portion of the cladding layer being removed until a remaining portion of the cladding layer has a thickness of about one half of the given wavelength or less, and a nonlinear optical crystal having an optical axis, in contact with said remaining portion of the cladding layer, the optical axis of the crystal being substantially perpendicular to the longitudinal axis of the fiber.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: January 23, 1990
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Stephen C. Rand, Robert A. Cronkite