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. 17, 2018
Filed:
Jun. 10, 2016
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventors:
Masato Nishihara, Kawasaki, JP;
Toshiki Tanaka, Setagaya, JP;
Yutaka Kai, Kawasaki, JP;
Tomoo Takahara, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/07 (2013.01); H04J 14/00 (2006.01); H04B 10/079 (2013.01); H04B 10/564 (2013.01); H04B 10/40 (2013.01); H04B 10/50 (2013.01); H04B 10/61 (2013.01); H01S 5/062 (2006.01);
U.S. Cl.
CPC ...
H04B 10/07953 (2013.01); H04B 10/0795 (2013.01); H04B 10/40 (2013.01); H04B 10/50 (2013.01); H04B 10/564 (2013.01); H04B 10/61 (2013.01); H01S 5/062 (2013.01);
Abstract
An optical transmitter transmits to an optical receiver a multi-carrier modulated signal light by driving a light source with a modulated signal modulated with a multi-carrier modulation scheme. The optical receiver monitors reception characteristic of any of subcarrier signals included in the modulated signal and transmits a monitor result to the optical transmitter. The optical transmitter controls drive conditions of the light source based on the monitor result received from the optical receiver.