Patents by Inventor Weng-Herng Su

Weng-Herng Su 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 fiber end for application in an optical isolator and a method of manufacture thereof
    Patent number: 5546486
    Abstract: An optical fiber having an improved input fiber end for an optical isolator. The end of the fiber has a flat end surface substantially perpendicular to the longitudinal axis of the fiber. An optical barrier layer, formed by a layer of chromium and a layer of gold, covers the end surface of the fiber with an aperture exposing the core and covering the cladding of the fiber. Light transmission into the end is substantially reduced to increase the reflection loss of the optical isolator.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: August 13, 1996
    Assignee: E-Tek Dynamics, Inc.
    Inventors: Ming Shih, Jingyu Xu, Weng-Herng Su, Jing-Jong Pan