The invention relates to the field of optical fibers for wavelength
division multiplex transmission networks. It provides an optical fiber
with chromatic dispersion compensation in the S band from 1 460 nm to 1
530 nm having a negative chromatic dispersion at the wavelength of 1 495
nm and at least three core slices, preferably at least four core slices.
The single core slice or the first core slice is very deeply buried and
preferably has as at the wavelength of 1 495 nm a chromatic dispersion to
dispersion slope ratio whose absolute value is from 68 nm to 158 nm.