Patents by Inventor Kun-Youl Park

Kun-Youl Park 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).

  • Wavelength-division multiplexed passive optical network for reducing degradation in noise characteristic of wavelength-locked fabry-perot laser diodes
    Patent number: 8180221
    Abstract: The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) for reducing degradation in noise characteristic of a wavelength-locked Fabry-Perot Laser Diode (F-P LD).
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: May 15, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chang-Hee Lee, Sil-Gu Mun, Kun-Youl Park
  • Wavelength-Division Multiplexed Passive Optical Network for Reducing Degradation in Noise Characteristic of Wavelength-Locked Fabry-Perot Laser Diodes
    Publication number: 20100221008
    Abstract: The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) for reducing degradation in noise characteristic of a wavelength-locked Fabry-Perot Laser Diode (F-P LD).
    Type: Application
    Filed: August 29, 2006
    Publication date: September 2, 2010
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chang-Hee Lee, Sil-Gu Mun, Kun-Youl Park
  • Dynamically tunable optical amplifier and fiber optic light source
    Patent number: 6728026
    Abstract: An optical amplifier comprises a wavelength tunable filter, one or more optical gain stages, and a controller for controlling a spectral profile of the wavelength tunable filter in response to a measured spectral characteristic of the amplifier. The controller may also control gain of the gain stage(s). The controller determines the filter spectral profile necessary to obtain a desired amplifier spectral characteristic. The spectral characteristic may, for example, be a power spectral output of the amplifier or a gain profile of the amplifier. The amplifier may incorporate a dispersion compensator. The controller may control a spectral profile of the wavelength tunable filter and gain of the dispersion compensator. A tunable fiber light source is also described.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: April 27, 2004
    Assignee: Novera Optics, Inc.
    Inventors: Chang-Hee Lee, Byoung Yoon Kim, Seok Hyun Yun, Hyo Sang Kim, Jin-Serk Baik, Kun-Youl Park, Wayne V. Sorin
  • Dynamically tunable optical amplifier and fiber optic light source
    Publication number: 20020071173
    Abstract: An optical amplifier comprises a wavelength tunable filter, one or more optical gain stages, and a controller for controlling a spectral profile of the wavelength tunable filter in response to a measured spectral characteristic of the amplifier. The controller may also control gain of the gain stage(s). The controller determines the filter spectral profile necessary to obtain a desired amplifier spectral characteristic. The spectral characteristic may, for example, be a power spectral output of the amplifier or a gain profile of the amplifier. The amplifier may incorporate a dispersion compensator. The controller may control a spectral profile of the wavelength tunable filter and gain of the dispersion compensator. A tunable fiber light source is also described.
    Type: Application
    Filed: August 29, 2001
    Publication date: June 13, 2002
    Inventors: Chang-Hee Lee, Byoung Yoon Kim, Seok Hyun Yun, Hyo Sang Kim, Jin-Serk Baik, Kun-Youl Park, Wayne V. Sorin