Analysis of the properties of a dual-core plasmonic photonic crystal fiber polarization splitter

In this work, the main properties of a dual-core plasmonic photonic crystal fiber that can split an incoming signal into two orthogonal polarization states are analyzed by using finite element method. The proposed splitter has a short length of 117 μm, being capable of splitting an incoming wave into two orthogonal states in the wavelength range between 1250 and 1710 nm. The main properties of the splitter are calculated such as extinction ratio, bandwidth, dispersion, mode-field-diameter and splice loss—the device would have a mode-field diameter around 4 μm and a splice loss below 5 dB.