Photocurable low refractive index coatings

摘要

A clad optical fiber comprising a core of glass, optionally a glass cladding with a lower refractive index than the glass core and a polymeric cladding made of a material having a refractive index smaller than that of the core (and smaller than that of the glass cladding, if any). The polymeric cladding is made of a cured material of a viscosity increased di- or multi-functional (meth)acrylate and a photopolymerization initiator.