Plastic Optical Fiber Market Size, Share & Industry Analysis, By Fiber Type (Step-Index Plastic Optical Fiber and Graded-Index Plastic Optical Fiber), By Core Material (Polymethyl Methacrylate (PMMA), Perfluorinated Polymer, Polycarbonate (PC), and Others), By Application (Data Communication, Sensing, Lighting & Illumination, Imaging, and Others), By End-user (Automotive, Manufacturing, Consumer Electronics, Telecommunications, Healthcare, Energy & Power, Aerospace & Defense, and Others), and Regional Forecast, 2026-2034