Patents by Inventor Stefano Donati

Stefano Donati 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).

  • Double-passage acousto-optical device and laser
    Patent number: 6370167
    Abstract: A double-passage acousto-optical device including an acousto-optical switch having a first polarization conversion region connected between first input and output ports, and a second conversion region connected between second input and output ports; and an optical combination connected between the first output port and the second input port via optical fibers and including an optical isolating element. The double-passage acousto-optical device may alternately include an acousto-optical switch including a single polarization conversion region connected between first input and output ports and also connected between second input and output ports. A bandpass filter, a notch filter, and add/drop and a tunable laser generator may be formed using the acousto-optical device.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: April 9, 2002
    Assignee: Corning O.T.I. s.P.a.
    Inventors: Stefano Donati, Salvatore Morasca, Steffen Schmid