Patents by Inventor Jacob Unger

Jacob Unger 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).

  • Device and method of driving piezoelectric actuators for fast switching of wavelengths in a fiber-bragg grating
    Publication number: 20030168939
    Abstract: A method to actuate a fiber-Bragg grating (FBG) using piezoelectric actuators is disclosed. In this method, the displacement of the piezoelectric actuator will induce a strain in the FBG, resulting in a shift of the Bragg wavelength (&lgr;Bragg). A suitable application of this device is in optical communications for the controlled switching or filtering of a channel within a specified bandwidth. The piezoelectric actuator is driven by applying effective voltage versus time profiles to the piezoelectric actuator coupled to a fiber Bragg grating to vary strain in the fiber portion containing the grating in order to switch the selected wavelengths of light reflected and/or transmitted by the fiber-Bragg grating.
    Type: Application
    Filed: December 10, 2002
    Publication date: September 11, 2003
    Inventors: Samad Talebpour, Andrew Hudson, Jacob Unger, Tino Alavie