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. 21, 2020
Filed:
Mar. 29, 2019
Fujikura Ltd., Tokyo, JP;
Kazuhiro Goi, Chiba, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
An optical device includes: a first port group P including n ports P; a second port Q; and a wavelength multiplexer/demultiplexer disposed between the first port group P and the second port Q. In a case where light beams Lof predetermined different n wavelengths λcorresponding to the respective ports Pare inputted to the wavelength multiplexer/demultiplexer, the wavelength multiplexer/demultiplexer combines the light beams Linto light L and outputs the light L to the second port Q. In a case where light L' is inputted to the second port Q, the wavelength multiplexer/demultiplexer separates the light L′ into light beams L′of the wavelengths λand outputs the light beams L′to the corresponding ports P.