Abstract
Multi-core high birefringence silica optical fibre (Hi-Bi SOF) preforms have been fabricated by digital light processing (DLP) 3D printing and post-printing thermal processing. These fibre preforms of high solid loading of 0.8 are doped with GeO2, TiO2, Al2O3 and B2O3 in the cores, cladding, and stress applying parts (SAPs), respectively, and have been consolidated with good structure and strength for fibre drawing.
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