Patents by Inventor Jun-Min Kim

Jun-Min Kim 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).

  • Method for making optical fiber preform having ultimately low pmd through improvement of ovality
    Publication number: 20050103057
    Abstract: A method for making an optical fiber preform having an ultimately low PMD (Polarization Mode Dispersion) through improvement of ovality is provided. This method has several collapse steps for collapsing an optical fiber preform having a clad/core deposition layer formed in a preform tube in which a rate of collapse is 0.01-0.06 mm/min at each collapsing step. By using this method, ovality and PMD of the optical fiber preform may be improved.
    Type: Application
    Filed: May 28, 2003
    Publication date: May 19, 2005
    Inventors: Byung-Yoon Kang, Joon-Ho Moon, Bong-Hoon Lee, Kyoung-Soon Park, Jun-Min Kim