Patents by Inventor Kwon Moo Lee

Kwon Moo Lee 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).

  • Dispersion shifted optical fiber having triple clad
    Patent number: 6516125
    Abstract: The present invention is related to a dispersion-shifted optical fiber for use in a wavelength division multiplexing system, which comprises a core, an inner clad, and a silica clad, wherein the optical fiber has a relatively low dispersion at a wavelength of 1550 nm, an effective area of 60 &mgr;m2 and small bending loss. The core consists of a first and a second core, wherein the core has a refractive index distribution. The inner clad consists of a first inner clad having a refractive index smaller than that of the second core and a second inner clad having a refractive index smaller than that of the second inner clad. A silica clad surrounds the inner clad and has a refractive index smaller than that of the second inner clad.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: February 4, 2003
    Assignee: LG Cable Ltd.
    Inventors: Hye Young Park, Kwon Moo Lee, Joon Hyung Cho