Design and analysis of a novel single-mode single-polarization photonic crystal fibre based on polarization-dependent coupling and absorption effect

A novel single-mode single-polarization (SMSP) photonic crystal fibrehas been proposed and analysed based on the polarization-dependent coupling and absorption effect via a full-vector finite element method with perfectly matchedlayers. The numerical results predict that very efficient SMSP operation canbe achieved with both high bandwidth and high extinction ratio at low losspenalty. Effects of the fibre structural parameters on the SMSP bandwidthand extinction ratio have been explored, which will provide useful guide for the design and fabrication of the fibre. The results obtainedwill be instructive for the realization of new SMSP fibres with highperformance.