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:
Mar. 20, 2007
Filed:
Mar. 31, 2003
Masao Tsukitani, Yokohama, JP;
Eisuke Sasaoka, Yokohama, JP;
Eiji Yanada, Yokohama, JP;
Yuichi Ohga, Yokohama, JP;
Masao Tsukitani, Yokohama, JP;
Eisuke Sasaoka, Yokohama, JP;
Eiji Yanada, Yokohama, JP;
Yuichi Ohga, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A dispersion compensating optical fiber comprises a minimum wavelength at which an increase amount of an actual loss value with respect to a theoretical loss value is not less than 10 mdB/km in a use wavelength band and on a long wavelength side of the use wavelength band. The actual loss value is measured in a state that the fiber is looped around a bobbin. The minimum wavelength falls within a range of 1,565 to 1,700 nm. This dispersion compensating optical fiber is suitably used for an optical transmission line of a large-capacity high-speed WDM optical transmission system.