optical fiber with low attenuation and high strength silica filamentare with soul

摘要

Low attenuation, high strength optical fiber is made by drawing a silica filament core at a temperature from 2040 DEG C. to 2140 DEG C. and melt coating onto it cladding polymer having an index of refraction lower than that of the silica core by extrusion at a draw-down ratio from 1.2 to 2.0.