METHOD OF MAKING GRADED INDEX POLYMERIC OPTICAL FIBRES

摘要

Disclosed is a method of making a graded index polymer optical fibre comprising a bicomponent spinning process employing a core spinning mass and a sheath spinning mass, the core spinning mass and the sheath spinning mass comprising a polymer and a monomer. The monomer in the core spinning mass has a higher refractive index than the monomer in the sheath spinning mass, and the spinning is followed by UV curing. The core and sheath polymers may be, e.g., poly(methyl methacrylate), the core monomer may be benzyl methacrylate, and the sheath monomer may be methyl methacrylate. The core and sheath spinning masses are solutions of the polymer in the monomer having a polymer concentration of from 10 to 50 % by weight.