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. 27, 2016
Filed:
May. 21, 2015
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/12 (2006.01); H01S 5/323 (2006.01); H01S 5/32 (2006.01);
U.S. Cl.
CPC ...
H01S 5/323 (2013.01); H01S 5/1231 (2013.01); H01S 5/3211 (2013.01); H01S 5/1225 (2013.01);
Abstract
A distributed feedback laser diode includes a substrate, an active layer located above and supported by the substrate, and a diffraction grating diffracting light generated in the active layer. The diffraction grating includes features and each feature includes dots. Each of the dots has a length less than 2.5 μm.