Highly birefringent photonic crystal fiber with low confinement loss at wavelength 1.55 μm

Abstract

High birefringent and low confinement loss of photonic crystal fiber is reported at wavelength 1.55 μm via Full-Vectorial Finite Element Method (FV-FEM). By suitable designing of three ring hexagonal solid core fiber and also by introducing a pair of large holes along x-axis near the core region, high modal birefringence 3 × 10 −3 and low confinement loss 0.019 dB/km are found at wavelength 1.55 μm.