Patents Assigned to Sang Kook HAN
  • Wavelength division multiplexing - passive optical network system
    Publication number: 20040213574
    Abstract: Disclosed relates to a wavelength division multiplexing-passive optical network (WDM-PON) system that can lock wavelengths of upstream light signals output from a plurality of optical network units (ONUs) by using coherent multi-wavelength light sources and reduce mode partition noises caused when using the coherent multi-wavelength light sources.
    Type: Application
    Filed: October 30, 2002
    Publication date: October 28, 2004
    Applicants: CORECESS, INC. Korean Corporation, Sang Kook HAN
    Inventors: Sang Kook Han, Sang Jin Han, Ku Ik Chung, Hyuk Choon Kwon