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. 28, 2007
Filed:
Aug. 24, 2006
Akira Miyauchi, Kawasaki, JP;
Kazuo Yamane, Kawasaki, JP;
Yumiko Kawasaki, Kawasaki, JP;
Satoru Okano, Sapporo, JP;
Akira Miyauchi, Kawasaki, JP;
Kazuo Yamane, Kawasaki, JP;
Yumiko Kawasaki, Kawasaki, JP;
Satoru Okano, Sapporo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a system connecting a transmitter and a receiver using transmission paths and repeaters (in-line amplifiers), red chirping whose α parameter is performed for an optical signal on a transmitting side. Each of the repeaters includes a dispersion-compensator for compensating the amount of dispersion on a preceding transmission path. The amount of dispersion compensation of the dispersion-compensator included in the transmitter is made constant. The dispersion-compensator included in the receiver is arranged in order to compensate the amount of dispersion on a preceding transmission path. A spread of a pulse width on a transmission path can be efficiently compensated by using the compensation capability of the dispersion-compensators and the red chirping on the transmitting side.