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:
May. 31, 2005
Filed:
May. 29, 2003
Fumio Takahashi, Tokyo, JP;
Mitsuhiro Kawasaki, Tokyo, JP;
Fumio Takahashi, Tokyo, JP;
Mitsuhiro Kawasaki, Tokyo, JP;
The Furukawa Electric Co. Ltd., Tokyo, JP;
Abstract
An optical fiber suitable for the WDM transmission in the wavelength bands of 1.31 μm and 1.55 μm is provided. An optical fiber is characterized by a zero dispersion wavelength of longer than 1330 nm and shorter than 1430 nm, a dispersion of not less than 6 ps/nm/km and not more than 15 ps/nm/km at a wavelength of 1550 nm, a ratio of a dispersion to a dispersion slope of not less than 200 nm and not mare than 400 nm at a wavelength of 1550 nm, a dispersion of not more than −1 ps/nm/km and not less than−8 ps/mn/km at 1300 nm, and a cutoff wavelength of 1300 nm or shorter.