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:
Apr. 28, 2015
Filed:
Dec. 21, 2012
Applicant:
Sumitomo Electric Device Innovations, Inc., Yokohama-shi, Kanagawa, JP;
Inventor:
Ryota Teranishi, Yokohama, JP;
Assignee:
Sumitomo Electric Device Innovations, Inc., Yokohama-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/068 (2006.01); H01S 5/50 (2006.01); H01S 5/40 (2006.01); H01S 5/0683 (2006.01); H01S 5/00 (2006.01); H01S 5/024 (2006.01); H01S 5/06 (2006.01); H01S 5/343 (2006.01); B82Y 20/00 (2011.01);
U.S. Cl.
CPC ...
H01S 5/06812 (2013.01); H01S 5/0683 (2013.01); H01S 5/06804 (2013.01); H01S 5/0085 (2013.01); H01S 5/02415 (2013.01); H01S 5/02438 (2013.01); H01S 5/0617 (2013.01); H01S 5/34306 (2013.01); H01S 5/4006 (2013.01); H01S 5/5063 (2013.01); B82Y 20/00 (2013.01);
Abstract
A control method of a semiconductor optical amplifier includes: controlling a driving current of the semiconductor optical amplifier in a region where a light output intensity decreases in accordance with increasing of the driving current, a drive current in the region being higher than a drive current in a region where a light output intensity increases in accordance with increasing of the driving current.