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:
Jan. 13, 2026
Filed:
Sep. 02, 2020
Nec Corporation, Tokyo, JP;
Takeshi Takeuchi, Tokyo, JP;
Satoshi Mikami, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An object is to provide an optical repeater that improves the fault/tolerance of a plurality of excitation light sources while sharing the excitation light sources among a plurality of optical fibers. An optical repeater includes excitation light sources, optical amplification units, and an optical distribution unit. The optical amplification units amplify optical signals by using lights output from the excitation light sources. The optical distribution unit includes a plurality of optical multiplexing/demultiplexing units. The optical distribution unit is configured in such a manner that the lights from the four different excitation light sources in the excitation light sources to be input to each of the light amplification units.