Method for manufacturing base material for photonic band gap fiber, method for manufacturing photonic band gap fiber, base material for photonic band gap fiber, and photonic band gap fiber

摘要

The photonic band gap fiber 1 has a hollow core region 10 and a honeycomb-shaped band gap region 27 surrounding the core region 10 and having a plurality of holes 21 formed in the glass body 22, and each of the holes 21 Comprises a columnar glass body 25 disposed on every third vertex of the hexagonal HEX and a columnar glass body 25 arranged to connect the columnar glass body 25 and the other three apexes of the hexagon HEX Is surrounded by the body 26, and the columnar glass bodies 25 are arranged in a triangular lattice pattern.