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:
Sep. 07, 2010
Filed:
Mar. 25, 2009
Hyun-seo Kang, Gwangju-si, KR;
Sei-hyoung Lee, Gwangju-si, KR;
Kwon-seob Lim, Gwangju-si, KR;
Jong-jin Lee, Gwangju-si, KR;
Jai-sang Koh, Gwangju-si, KR;
Hyun-seo Kang, Gwangju-si, KR;
Sei-hyoung Lee, Gwangju-si, KR;
Kwon-seob Lim, Gwangju-si, KR;
Jong-jin Lee, Gwangju-si, KR;
Jai-sang Koh, Gwangju-si, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An optical waveguide device and an optical communication module are provided. In the optical waveguide device which includes a core and a cladding layer formed around the core and has one end formed to be inclined so as to refract input and output signals, the core includes therein a diffraction portion for diffracting an optical signal incident through the cladding layer to propagate straight through the core. Thus, it is possible to prevent deterioration of an optical signal coupling ratio in implementing a technique of transmitting optical signals in opposite directions.