A network for distributing signals to a plurality of user having a distribution
unit and a plurality of optical cables adapted to make the distribution unit communicate
with the plurality of user equipment. In turn, each optical cable has an optical
fibre having a core, a cladding and a predetermined simple refractive index profile
n(r). Each optical fibre is adapted to guarantee a single-mode propagation
at higher wavelengths than about 1260 nm and a few-mode propagation at about 850
nm, and each optical fibre has such refractive index profile n(r) as to
guarantee macro-bending losses at 1550 nm that are less than about 0.5 dB and an
intermodal delay at 850 nm that is less than or equal to, about
1 ns/Km.
