Patents by Inventor Desmond L. Seekola

Desmond L. Seekola 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).

  • Electro-optically controllable polarization insensitive optical device
    Patent number: 6735016
    Abstract: A polarization independent optical device is provided wherein the device has two optical paths that include one or more birefringent crystals, a electrically controllable rotator, and a fixed waveplate. The device may operate as a switch, attenuator, coupler, or polarization mode dispersion compensator. The device may also include several folded path embodiments, a multifunctional embodiment, and a temperature insensitive embodiment.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: May 11, 2004
    Assignee: Spectraswitch, Inc.
    Inventors: Zhong Ming Mao, Desmond L. Seekola, Arne Erstling
  • Birefringent optical device
    Patent number: 6504642
    Abstract: A polarization independent optical device is provided wherein the device has two optical paths that include one or more birefringent crystals, a electrically controllable rotator, and a fixed waveplate. The device may operate as a switch, attenuator, coupler, or polarization mode dispersion compensator. The device may also include several folded path embodiments, a multifunctional embodiment, and a temperature insensitive embodiment.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: January 7, 2003
    Assignee: Spectraswitch, Inc.
    Inventors: Richard Albert, Arne Erstling, Desmond L. Seekola, Brent Bergner, Michael Knotz