Side-Emitting cable is available in three forms - Multi-Strand, Solid Core and Cracked glass*. Poly Optics is the leading manufacturer of solid core plastic fiber optic cable for lighting. Our fibre is rugged, non-conductive, water resistant and flexible. Side Light Fiber is designed to. The optical fibers “Side-Glow” are used essentially for scenographic and / or decorative effects, due their particular characteristic of side light emission. These are high-performance light guides with PMMA (PolyMethylMethAcrylate) fibers available in a clear insulated sheath or bare fiber without sheathing. Uninsulated or bare fibers emit more light at the end and. Interior decorative lighting for settings like homes, KTVs, hotels, theaters, clubs, pubs, and high-end entertainment venues. Also Stranded is best in wet locations.