Patents by Inventor Ralph T. Hawkins, II

Ralph T. Hawkins, II 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).

  • Traveling wave electro-optic modulator
    Patent number: 5050948
    Abstract: An electro-optic device comprises a substrate of electro-optic material having at least one optical waveguide formed therein subjacent a main surface thereof for propagating an optical mode. A coplanar transmission line is formed on the main surface of the substrate and has at least first and second electrodes spaced apart by an electrode gap that is wider than the first electrode. The center of the waveguide is within the electrode gap and closer to the first electrode than the second electrode.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: September 24, 1991
    Assignee: Tektronix, Inc.
    Inventors: Ralph T. Hawkins, II, Jeffrey H. Goll, Steven H. Pepper
  • Laser light source with reduced sensitivity to optical feedback effects
    Patent number: 4890290
    Abstract: A laser light source with reduced sensitivity to optical feedback effects comprises an emitter device for emitting laser light. A body of electro-optic material is optically coupled to the emitter device for receiving and propagating light emitted by the emitter device. A time-varying electric field is established in the body of electro-optic material. Consequently, the frequency of the light emitted by the laser diode is shifted when it propagates through the body of electro-optic material.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: December 26, 1989
    Inventor: Ralph T. Hawkins, II