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:
May. 21, 2019
Filed:
Jun. 14, 2018
Applicant:
National Institute of Information and Communications Technology, Koganei-shi, Tokyo, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/22 (2006.01); H01S 5/34 (2006.01); H01S 5/02 (2006.01); H01S 5/343 (2006.01); H01S 5/042 (2006.01);
U.S. Cl.
CPC ...
H01S 5/341 (2013.01); H01S 5/0206 (2013.01); H01S 5/2226 (2013.01); H01S 5/343 (2013.01); H01S 5/34353 (2013.01); H01S 5/0425 (2013.01);
Abstract
A semiconductor optical deviceincludes an active layerprovided on a substratea clad layerprovided on the active layerand a contact layerprovided on the clad layerThe contact layercontains a first impurity and a second impurity different from the first impurity. A semiconductor light source includes the active layerprovided on the substratethe clad layerprovided on the active layerand the contact layerprovided on the clad layerThe contact layercontains the first impurity and the second impurity different from the first impurity.