A dispersion compensating fiber that includes a segmented core having a refractive index profile with a core segment having a Δ1% greater than 2.0 %, a clad layer surrounding and in contact with the core and having a refractive index profile, wherein the refractive index profiles are selected to provide a total dispersion at a wavelength of about 1550 nm of less than or equal to about -177 ps/nm/km, and a total dispersion slope at a wavelength of about 1550 nm of less than or equal to about -2.0 ps/nm2/km. The refractive index profiles are further selected to provide a kappa value, defined as the total dispersion at 1550 nm divided by the dispersion slope at 1550 nm, of greater than or equal to about 67 nm.
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