Patent ID: 6885802

Claim:
A network for distributing signals to a plurality of user equipment comprising a distribution unit; and a plurality of optical cables adapted to make said distribution unit communicate with said plurality of user equipment, each optical cable comprising an optical fibre having a core, a cladding and a predetermined simple refractive index profile Δn(r), where Δn(r) refers to the refractive index difference between the core and the cladding as a function of the radial distance r, each optical fibre being adapted to provide a single-mode propagation at higher wavelengths than about 1260 nm and a few-mode propagation at about 850 nm; the refractive index profile Δn(r) of each optical fibre being such as to provide macro-bending losses at 1550 nm that are less than about 0.5 dB after 100 turns on a mandrel having a 60-mm diameter; and an intermodal delay Δτ at 850 nm that is less than or equal to, about 1 ns/Km.