Patents Examined by Edward J. Wojchiechowicz
  • Quantum well laser utilizing an inversion layer
    Patent number: 5010374
    Abstract: A quantum well laser exhibiting near ideal switching characteristics, high power conversion efficiency and, moreover, capable of utilizing the advantageous characteristics of a double heterostructure optoelectronic switch comprises a quantum well region disposed between carrier confinement regions. In particular, the interface between the qunatum well regioin and a confinement region is adapted to the formation of an inversion layer.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: April 23, 1991
    Assignee: AT&T Bell Laboratories
    Inventors: Paul W. Cooke, Geoffrey W. Taylor