Patents by Inventor John Richard Debesis

John Richard Debesis 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-optic modulator with threshold bias
    Patent number: 5734491
    Abstract: An electro-optic modulator (30) with a threshold bias. A PLZT substrate (14) has a plurality of first electrode pairs (12a) and (13a) on a first surface, and a plurality of second electrode pairs (12b) and (13b) on a second surface, which are aligned with the first plurality of electrode pairs. First and second electrode pairs are electrically isolated. A negative bias voltage is applied to the first plurality of electrode pairs (12a) and (13a). A positive bias voltage is applied to the second plurality of electrode pairs (12b) and (13b), which is approximately equal in magnitude to the first bias voltage. The bias voltage reduces the signal voltage necessary for optical transmission and improves the linearity of the electro-optic modulator (30).
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: March 31, 1998
    Assignee: Eastman Kodak Company
    Inventor: John Richard Debesis