Patents by Inventor Josephus H. F. M. Poulissen

Josephus H. F. M. Poulissen 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).

  • Coupling monomode optical fiber having a tapered end portion
    Patent number: 4671609
    Abstract: A monomode optical transmission fiber with a tapered end portion. A lens is arranged on the end portion. The lens has a refractive index higher than that of the fiber core. Such a fiber has a substantially better coupling efficiency from a diode laser into the fiber core. The lens can be formed by immersing the tapered end portion of the fiber in a transparent liquid material. The drop formed on the end portion of the fiber after withdrawal from the liquid solidifies into a lens.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: June 9, 1987
    Assignee: U.S. Philips Corporation
    Inventors: Giok D. Khoe, Josephus H. F. M. Poulissen, Henricus M. De Vrieze