Patents Examined by B. Holloway
  • Optical feedback control in the frequency conversion of laser diode radiation
    Patent number: 4884276
    Abstract: Optical radiation from a laser diode is frequency modified through interaction with a nonlinear optical material in an external optical cavity. High efficiency frequency modification is achieved through the use of optical feedback from the external cavity to narrow the linewidth of the laser diode output and frequency lock the laser diode to the external cavity.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: November 28, 1989
    Assignee: Amoco Corporation
    Inventors: George J. Dixon, Douglas W. Anthon, John H. Clark