PREFORM FOR HOLEY FIBER AND METHOD OF FABRICATING HOLEY FIBER

摘要

PROBLEM TO BE SOLVED: To provide a method of fabricating a preform for a photonic crystal optical fiber, the method for preventing an optical fiber from being contaminated during the manufacturing process, facilitating short preform length and simple alignment of air holes, and solving problems derived from deformation and size-shrinkage of the air holes occurring when an optical fiber is drawn from the preform. SOLUTION: The method of fabricating the preform used to manufacture a holey fiber includes the steps of: (a) preparing a tubular mold having a plurality of pins for forming a plurality of air holes aligned in a predetermined pattern; (b) injecting silica slurry including a monomer and a dimer into the tubular mold and forming silica slurry into a gel; (c) demolding the gel from the pins and the tubular mold; and (d) drying and sintering the gel formed with air holes. COPYRIGHT: (C)2005,JPO&NCIPI