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:
Sep. 26, 2006
Filed:
Mar. 28, 2005
Masanori Takahashi, Chiyoda-ku, JP;
Jiro Hiroishi, Chiyoda-ku, JP;
Hideaki Tobioka, Chiyoda-ku, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
An optical fiber wavelength converter inputs signal light and pumping light into an end of the highly nonlinear optical fiber to obtain converted light of the signal light from the other end of the highly nonlinear optical fiber. In the optical fiber wavelength converter, a wavelength λp of the pumping light is set within a range from λ−1 nanometers to λ+1 nanometers, where λis a zero-dispersion wavelength of the highly nonlinear optical fiber, an absolute value of a dispersion slope of the highly nonlinear optical fiber with the wavelength λp is not more than 0.02 ps/nm/km, a nonlinear coefficient γ of the highly nonlinear optical fiber with the wavelength λp is not less than 10/W/km, and a change in a conversion bandwidth D defined as D=|λp−λs| is not more than 30 percent at variable environmental temperatures ranging from 0° C to 40° C.