Patent ID: 6807351
Filing Date: 2004-10-19
Classification: G02B,H04B

Abstract:
A dispersion compensating optical fiber, comprising:a segmented core having at least three segments including a central core segment, a moat segment, and a ring segment wherein the central core segment has an outer radius R1 in the range between 1.5 to 2.0 &mgr;m, the refractive index profile being selected to provide total dispersion at 1595 nm between âˆ’70 ps/nm-km and âˆ’225 ps/nm-km; a dispersion slope more negative than âˆ’0.7 ps/nm2-km at 1595 nm; and a range of kappa values, defined as the dispersion at a particular wavelength divided by the dispersion slope at the particular wavelength, of between 80 nm to 155 nm for all wavelengths in a wavelength range between 1570 nm and 1620 nm, and kappa value at 1595 nm between 90 nm and 110 nm.