Patents by Inventor Martin Helfand

Martin Helfand 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).

  • Compact optical sub-assembly with ceramic package
    Publication number: 20050185882
    Abstract: The present invention relates to an optical sub-assembly, i.e. a receiver optical subassembly or a transmitter optical sub-assembly, for use in an optical transceiver device. The optical sub-assembly according to the present invention includes a hermetic ceramic package with a multi-layer ceramic structure providing a unique RF signal and ground structure providing a controlled signal impedance to achieve high signal transmission quality.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 25, 2005
    Applicant: JDS Uniphase Corporation
    Inventors: Jeffrey Zack, Craig Young, Anand Shukla, Wei Xu, William Hogan, David Gaio, Chris Hart, Philip Deane, Mark Bailey, Martin Helfand