Patents by Inventor Simon M James

Simon M James 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).

  • Optical coupling device
    Patent number: 4983007
    Abstract: A coupling device couples low power levels of optical radiation out of an optical fibre (3) for maintenance and fault-finding purposes. The assembled coupling device acts to clamp a fibre (3), with its primary plastics coating still in place, against the inner side of a gently curved silica rod (1). The rod (1) is strongly waveguiding and, picking up radiation leaked from the fibre (3), directs it to a photodetector (6). The device finds particular application in optical communications systems.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: January 8, 1991
    Assignee: British Telecommunications
    Inventors: Simon M James, Mark Davison, Stephen Hornung, Michael H. Reeve