Numerical and experimental analysis of polarization properties from hybrid PCFs across different photonic bandgaps

This work presents a numerical and experimental characterization of polarization properties from hybrid photonic crystal fibers (hybrid PCFs or HPCFs) across different bandgaps. Very high extinction ratio over at least three wide bands and single-mode and single-polarization operation over more than 320 nm have been obtained by using only one fiber. Furthermore, it is reported, for the first time, a multi- and broadband fiber-based optical polarizer. Numerical simulations and experiments of modal, birefringence and polarization properties have been carried out to demonstrate the remarkable performance of the proposed device.