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. 05, 2023
Filed:
Jul. 14, 2020
Applicant:
National Taiwan University, Taipei, TW;
Inventors:
Assignee:
National Taiwan University, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01); H01S 5/062 (2006.01); H01S 5/34 (2006.01); B82Y 20/00 (2011.01); B82Y 10/00 (2011.01);
U.S. Cl.
CPC ...
H01S 5/06203 (2013.01); H01S 5/06206 (2013.01); H01S 5/34 (2013.01); B82Y 10/00 (2013.01); B82Y 20/00 (2013.01);
Abstract
A transistor for emitting laser with a fixed frequency includes a first region, a second region, at least one quantum well, and a third region. The at least one quantum well is installed in the second region, and the second region is coupled between the first region and the third region. When one of the first region, the second region, and the third region receives two signals, or two of the first region, the second region, and the third region receive the two signals respectively, the at least one quantum well emits the laser with the fixed frequency.