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For many types of active polymer optical materials, a homogeneous circulation of dye particles over the whole dietary fiber size and cross section is required. In this study, substance bonding of dyes to poly(methyl methacrylate) (PMMA) by copolymerization is attained inside the polymerization procedure rather than dissolving the dyes within the monomers. In conjunction with an improved fabrication mechanism, this leads to homogeneous dye distribution within the preforms. A wa