Patents Assigned to Lytel, Incorporated
  • Phase locked diode laser array
    Patent number: 4722089
    Abstract: The present invention is a semiconductor diode laser array which favors oscillation in the zero degree phase shift mode. The array comprises first and second sets of waveguides which are interdigitated in a coupling region. Energy transfer between the first and second sets of waveguides by way of evanescent coupling is needed to define the feedback paths for sustaining laser oscillations in the waveguides. Such coupling is optimum and the threshold current for lasing lowest when all of the waveguides in both sets oscillate in phase.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: January 26, 1988
    Assignee: Lytel, Incorporated
    Inventors: Dan Botez, Eugene I. Gordon