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:
Nov. 21, 2006
Filed:
Aug. 02, 2005
Ning Guan, Sakura, JP;
Shinji Habu, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Kuniharu Himeno, Sakura, JP;
Koichi Harada, Sakura, JP;
Ning Guan, Sakura, JP;
Shinji Habu, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Kuniharu Himeno, Sakura, JP;
Koichi Harada, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
In an optical transmission path including multimode optical fibers, modal dispersion is reduced so that signal light can be transmitted at high speed and across a broad band, at low-cost and over a long distance. To reduce modal dispersion, when the transmission path is constructed by coupling a plurality of multimode optical fibers, a length ratio for the multimode optical fibers that obtains the maximum band of the optical transmission path is determined, and the multimode optical fibers are coupled according to this length ratio. The multimode optical fibers that are used have specific refractive index profiles as mode dispersion-compensating fibers. The compensated fiber and the mode dispersion-compensating fiber are coupled with specific lengths.