Patents by Inventor Joshua Elliot Rothenberg

Joshua Elliot Rothenberg 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).

  • Fiber amplifier system including tapered fiber bundle and polarization control
    Patent number: 8922881
    Abstract: A fiber laser amplifier system including a beam splitter that splits a feedback beam into a plurality of fiber beams where a separate fiber beam is sent to a fiber amplifier for amplifying the fiber beam. A tapered fiber bundle couples all of the output ends of all of the fiber amplifiers into a combined fiber providing a combined output beam. A beam sampler samples a portion of the output beam from the tapered fiber bundle and provides a sample beam. A single mode fiber receives the sample beam from the beam sampler and provides the feedback beam.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: December 30, 2014
    Assignee: Northrop Grumman Systems Corporation
    Inventor: Joshua Elliot Rothenberg