Patents by Inventor Kevin J. Blyth

Kevin J. Blyth 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).

  • Tunable optical filters
    Patent number: 5305402
    Abstract: A tunable optical filter includes an array of optical fibre located within a capillary tube and mounted on a solenoid movable support and positioned in front of a lens and diffration grating. The filter provides simultaneous tuning filtering between fibres. By coupling fibres to a ring laser and fibre to an optical receiver simultaneous tuning of a laser and receiver is possible. The filter finds particular application in passive optical networks.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: April 19, 1994
    Assignee: British Telecommunications Public Limited Company
    Inventors: Alan M. Hill, David B. Payne, Kevin J. Blyth