Ultra-broad band single-polarization single-mode photonic crystal fiber based on the zero-order surface plasmon polariton mode

An ultra-broad band single-polarization single-mode photonic crystal fiber (SPSM-PCF) is investigated based on zero order surface plasmon polariton mode by using the full vector finite element method (FEM). Highly wavelength-dependent transmission is obtained because of the band gap-liked effect of the bonding zero-order surface plasmon polariton mode stimulated over the interface of gold/liquid. With a filled RI of 1.52, the polarization extinction is higher than 30dB/cm among a large bandwidth of 360nm in the second communication window. The proposed SPSM-PCF also presents a large tolerance of the size deviation of gold-coated layer.