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:
Jul. 08, 2014
Filed:
Feb. 08, 2011
Namje Kim, Daejeon, KR;
Kyung Hyun Park, Daejeon, KR;
Young Ahn Leem, Daejeon, KR;
Chul-wook Lee, Daejeon, KR;
Sang-pil Han, Daejeon, KR;
Dong-hun Lee, Daejeon, KR;
Min Yong Jeon, Daejeon, KR;
Namje Kim, Daejeon, KR;
Kyung Hyun Park, Daejeon, KR;
Young Ahn Leem, Daejeon, KR;
Chul-Wook Lee, Daejeon, KR;
Sang-Pil Han, Daejeon, KR;
Dong-Hun Lee, Daejeon, KR;
Min Yong Jeon, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a dual mode semiconductor laser and a terahertz wave apparatus using the same. The dual mode semiconductor laser includes a distributed feedback laser structure section including a first diffraction grating on a substrate and a distributed Bragg reflector laser structure section including a second diffraction grating on the substrate. A first wavelength oscillated by the distributed feedback laser structure section and a second wavelength oscillated by the distributed Bragg reflector laser structure section are different from each other, and the distributed feedback laser structure section and the distributed Bragg reflector laser structure section share the same gain medium with each other.