Patents by Inventor Eun II Jeong

Eun II Jeong 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).

  • Planar optical waveguide and optical module
    Patent number: 10955627
    Abstract: The present disclosure relates to a planar optical waveguide and an optical module. A planar optical waveguide according to the present disclosure includes a core and dads provided at an upper portion and a lower portion of the core, respectively, and an end of an upper clad facing a light source is polished to form a first refractive surface inclined at a first angle to refract a light emitted to the upper portion of the core and guide the light to the core. The refractive surfaces are formed at the upper clad and the lower clad of the planar optical waveguide in consideration of beam characteristics of the light source to reduce optical coupling loss without a separate optical waveguide lens.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: March 23, 2021
    Assignee: FIBERPRO, INC.
    Inventors: Sang Jun Cha, Sung Duck Kim, Eun II Jeong
  • PLANAR OPTICAL WAVEGUIDE AND OPTICAL MODULE
    Publication number: 20200110230
    Abstract: The present disclosure relates to a planar optical waveguide and an optical module. A planar optical waveguide according to the present disclosure includes a core and dads provided at an upper portion and a lower portion of the core, respectively, and an end of an upper clad facing a light source is polished to form a first refractive surface inclined at a first angle to refract a light emitted to the upper portion of the core and guide the light to the core. The refractive surfaces are formed at the upper clad and the lower clad of the planar optical waveguide in consideration of beam characteristics of the light source to reduce optical coupling loss without a separate optical waveguide lens.
    Type: Application
    Filed: April 9, 2018
    Publication date: April 9, 2020
    Inventors: Sang Jun Cha, Sung Duck Kim, Eun II Jeong