High bandwidth multimode optical fiber optimized for multimode and single-mode transmissions

摘要

It is proposed a home optical data network formed of an optical fiber comprising an optical core and an optical cladding surrounding the optical core, the optical core having a refractive graded-index profile with a minimal refractive index n₁ and a maximal refractive index n₀, said optical fiber being such that it has a numerical aperture NA and an optical core radius a satisfying a criterion C of quality of optical communications defined by the following equation:; $$ C=\mathrm{NA}-0.02\times a$$ $$ \mathrm{where}\text{:}$$ $$ \mathrm{NA}=\sqrt{n_0^2-n_1^2}=n_0·\sqrt{2\Delta }\mathrm{with}\Delta =\frac{n_0^2-n_1^2}{2n_0^2},$$Δ is the normalized refractive index difference,and in that said minimal and maximal refractive indexes n₁, n₀ and said optical core radius a are chosen such that NA0.20, a10 μm and |C|0.20.