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. 15, 2014
Filed:
Feb. 28, 2013
Applicant:
Kazuhisa Takagi, Tokyo, JP;
Inventor:
Kazuhisa Takagi, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01); H01S 5/00 (2006.01); H01S 5/22 (2006.01); H01S 5/026 (2006.01); H01S 5/065 (2006.01); H01S 5/40 (2006.01); H01S 5/343 (2006.01); H01S 5/12 (2006.01);
U.S. Cl.
CPC ...
H01S 5/22 (2013.01); H01S 5/026 (2013.01); H01S 5/0655 (2013.01); H01S 5/4031 (2013.01); H01S 5/34306 (2013.01); H01S 5/12 (2013.01); H01S 5/0265 (2013.01);
Abstract
An optical semiconductor device includes: a semiconductor substrate; a semiconductor laser part on the semiconductor substrate and having a vertical ridge; and an optical modulator part on the semiconductor substrate, having an inverted-mesa ridge, and modulating light emitted by the semiconductor laser part.