Modal analysis of a photonic quasicrystal fiber doped with germanium

Optical fibers constituted by photonic quasi-crystals it is based on aperiodic structures characterized by at least two different symmetrical patterns. In this work an optical fiber constitute by quasi-periodic and symmetric matrix is analyzed using the finite element method in conjunction with cylindrical perfectly matched layers. The structure is composed of silica doped with germanium and originates from six distributions of air holes symmetrically arranged.