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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.:

US 6031955 B1

PDFFull Text
Date of Patent:
Feb. 29, 2000

Filed:

Mar. 10, 1998

Dispersion compensating optical fiber

Applicant:
Inventors:

Kazunori Mukasa, Ichihara, JP;

Yoshihisa Suzuki, Funabashi, JP;

Assignee:

The Furukawa Electric Co., Ltd., Tokyo, JP;

Attorneys:

Larcasse & Associates

Lacasse; Randy W.

Strickland; Wesley L.

Primary Examiner:

Hung N Ngo

Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385123 ; 385127 ;
Abstract

The present invention provides a dispersion compensating optical fiber, connected to a transmission single-mode optical fiber having zero dispersion in a 1.3-.mu.m wavelength band, for efficiently compensating for the dispersion of a light signal of a 1.55-.mu.m wavelength band. The refractive index configuration is such that the refractive index profile is a W type and that the dispersion value is a high negative value of not more than -80. The ratio Ra (Ra=a/b) of the diameter a of a core 1 and the diameter b of a side core 2 is set within a range of not less than 0.33 and not more than 0.37. The ratio DPS(SMF)/DPS(DCF) of a value DPS(SMF) obtained by dividing the dispersion value of the transmission single-mode optical fiber in the 1.55-.mu.m wavelength band by the dispersion slope of the transmission single-mode optical fiber in the 1.55-.mu.m wavelength to a value DPS(DCF) obtained by dividing the dispersion value of the dispersion compensating optical fiber in the 1.55-.mu.m wavelength band by the dispersion slope of the dispersion compensating optical fiber in the 1.55 .mu.m wavelength band is set within a range of not less than 0.95 and not more than 1.05.

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Mukasa, Kazunori. (2000). Dispersion compensating optical fiber (U.S. Patent No. 6031955). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6031955

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