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:
Dec. 27, 2005
Filed:
Jun. 11, 2004
Kazuhiko Aikawa, Sakura, JP;
Manabu Saitou, Sakura, JP;
Takaaki Suzuki, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Takashi Suzuki, Sakura, JP;
Koichi Harada, Sakura, JP;
Akira Wada, Sakura, JP;
Kazuhiko Aikawa, Sakura, JP;
Manabu Saitou, Sakura, JP;
Takaaki Suzuki, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Takashi Suzuki, Sakura, JP;
Koichi Harada, Sakura, JP;
Akira Wada, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
In order to provide a dispersion-compensating optical fiber able to be applied over a broad wavelength band, having a large effective area, and as a result, suppressing the occurrence of non-linear effects, the present invention comprises a dispersion-compensating optical fiber that compensates chromatic dispersion of a 1.3 μm single-mode optical fiber over the entire wavelength range of 1.53-1.63 μm characterized in that, chromatic dispersion at a wavelength of 1.55 μm is −50 ps/nm/km or less, the dispersion slope is negative over the entire wavelength range of 1.53-1.63 μm, a cutoff wavelength is provided at which there is substantially single-mode propagation, bending loss is 30 dB/m or less, effective area is 20 μmor more, and the absolute value of chromatic dispersion during compensation of the chromatic dispersion of a 1.3 μm single-mode optical fiber serving as the target of compensation is 0.5 ps/nm/km or less.