Patents by Inventor David Raymond Doucet

David Raymond Doucet 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).

  • Reduction of Faraday effect in optical ground wire (OPGW) cables
    Patent number: 9791651
    Abstract: New optical ground wire (OPGW) cable structures are proposed. These OPGW cables are designed to reduce or minimize the net magnetic field B?NET parallel to the direction {circumflex over (z)} of light propagation resulting from a lightning strike on the cable. A reduction in the net magnetic field B?NET parallel to the direction {circumflex over (z)} of light propagation yields a reduction in the amount and speed of state of polarization (SOP) rotation resulting from a lightning strike on the cable due to the Faraday effect. OPGW cables constructed according to these new OPGW cable structures fulfill their dual function to shield the high-voltage conductors from lightning strikes and to support coherent optical communications.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 17, 2017
    Assignee: Ciena Corporation
    Inventor: David Raymond Doucet