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:
Nov. 12, 2019
Filed:
Sep. 12, 2017
Electronics and Telecommunications Research Institute, Daejeon, KR;
OH Kee Kwon, Daejeon, KR;
Su Hwan Oh, Daejeon, KR;
Chul-Wook Lee, Daejeon, KR;
Kisoo Kim, Seoul, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Abstract
Provided are an optical apparatus, a manufacturing method of a distributed Bragg reflector laser diode, and a manufacturing method of the optical apparatus, the an optical apparatus including a cooling device, a distributed Bragg reflector laser diode having a lower clad including a recess region on one side of the cooling device and connected to another side of the cooling device, and an air gap between the cooling device and the distributed Bragg reflector laser diode, wherein the air gap is defined by a bottom surface of the lower clad in the recess region and a top surface of the cooling device.