Patents by Inventor Rudy S. Padilla

Rudy S. Padilla 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).

  • Patent number: 7755825
    Abstract: A method of fabricating an optical modulator on a silicon substrate, comprising: forming a silicon nitride layer on the silicon substrate; forming a first polycrystalline silicon layer (PSL) on the silicon nitride layer; patterning the first PSL; forming a first silicon dioxide layer (SDL) on the first patterned PSL; patterning the first SDL; forming a second PSL on the first patterned SDL; patterning the second PSL; forming a second SDL on the second patterned PSL; patterning the second SDL; forming a third PSL on the second patterned SDL; patterning the third PSL; forming a metal layer on the third patterned PSL; patterning the metal layer; removing the first and second SDLs to effect release of first and second side reflectors; forming an active layer on the metal layer; and patterning the active layer or stack to form a base reflector and associated conductive traces for biasing.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: July 13, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Rudy S. Padilla, Michael G. Lovern, Stephen D. Russell, Randy L. Shimabukuro
  • Patent number: 7268930
    Abstract: An optical modulator used for optically modulating electromagnetic energy. The optical modulator comprises a substrate and three substantially planar reflectors arranged substantially mutually orthogonal to each other. The planar reflectors comprise a base reflector disposed substantially in the plane of the substrate and first and second side reflectors operably coupled to the base reflector. The optical modulator further comprises a pair of electrically conductive traces operably connected to the base reflector, an electrically conductive pad operably connected to each of the conductive traces, at least one material layer deposited on the base reflector by which its reflection properties may be altered or modulated with an applied voltage, and a biasing source operably coupled to said conductive pads for providing a modulated voltage to the base reflector.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: September 11, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Rudy S. Padilla, Michael G. Lovern, Stephen D. Russell, Randy L. Shimabukuro