Patents Assigned to Lucent Techolonogies Inc.
  • Tunable directional optical waveguide couplers
    Patent number: 6002823
    Abstract: The thermo-optically controlled optical couplers wherein the coupling region between the waveguides in the coupling section is filled with a material having a high dependence of refractive index on temperature thus making the thermo-optic control means more efficient and allowing a greater range of adjustment in the coupling coefficient for a given temperature change.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: December 14, 1999
    Assignee: Lucent Techolonogies Inc.
    Inventors: Edwin Arthur Chandross, Arturo Hale, Valerie Jeanne Kuck, Edward John Laskowski, Christi Kay Madsen, Ronald Edward Scotti, Joseph Shmulovich