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:
Jul. 11, 2006
Filed:
Aug. 09, 2000
Kazuhiko Aikawa, Sakura, JP;
Takashi Suzuki, Sakura, JP;
Akira Wada, Sakura, JP;
Ryozo Yamauchi, Sakura, JP;
Takaaki Suzuki, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Manabu Saitou, Sakura, JP;
Kazuhiko Aikawa, Sakura, JP;
Takashi Suzuki, Sakura, JP;
Akira Wada, Sakura, JP;
Ryozo Yamauchi, Sakura, JP;
Takaaki Suzuki, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Manabu Saitou, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
An optical fiber is fabricated with a refractive index profile having a central core; a middle part provided around the outer periphery of the central core and having a lower refractive index than that of the central core; and a cladding provided around the periphery of the middle part and having a higher refractive index than the middle part and a lower refractive index than the central core. This optical fiber has an effective core area of 120 μmor more in an employed wavelength band selected from the range of 1.53˜1.63 μm, and has a cut-off wavelength that is capable of substantially single mode propagation in the aforementioned employed wavelength band. As a result, it is possible to construct an optical transmission system having excellent transmission characteristics in which nonlinearity is decreased.