The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Jul. 12, 2022
Electronics and Telecommunications Research Institute, Daejeon, KR;
Won Bae Kwon, Daejeon, KR;
Jong Jin Lee, Daejeon, KR;
Eun Kyu Kang, Daejeon, KR;
Soo Yong Jung, Daejeon, KR;
Hae Chung Kang, Daejeon, KR;
Sang Jin Kwon, Daejeon, KR;
Dae Seon Kim, Daejeon, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Abstract
An optical receiver sub-assembly is provided, which includes a substrate, an optical waveguide device mounted on the substrate to transfer ray incident from a ray source, and a photodetector mounted on the substrate and disposed under a vertical cross-sectional surface of the optical waveguide device, wherein the ray is sequentially reflected and refracted by an upper slope surface and a lower slope surface provided in the vertical cross-sectional surface and is vertically incident on an active area of the photodetector.