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:
Aug. 09, 2016
Filed:
Feb. 02, 2015
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Miki Onaka, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01); H04B 10/297 (2013.01); H04B 10/291 (2013.01); G02B 27/10 (2006.01); H01S 3/067 (2006.01); H01S 3/094 (2006.01); H01S 3/23 (2006.01);
U.S. Cl.
CPC ...
H04B 10/2972 (2013.01); H04B 10/2918 (2013.01); G02B 27/10 (2013.01); H01S 3/06775 (2013.01); H01S 3/094061 (2013.01); H01S 3/2391 (2013.01);
Abstract
An optical amplification repeater includes a first rare-earth-doped optical amplification medium which amplifies a first signal light to be transmitted to a downstream, a second rare-earth-doped optical amplification medium which amplifies a second signal light to be transmitted to an upstream, and a pump light split and guide unit configured to split a pump light transmitted together with any of the first and second signal lights and to guide the split pump light to each of the first and second rare-earth-doped optical amplification mediums.