A PHOTONIC CRYSTAL FIBRE FOR TRANSFERRING RADIALLY POLARISED LIGHT BEAM AND A METHOD OF MANUFACTURING SUCH A FIBRE

摘要

The present invention relates to a photonic crystal fibre for transferring radially polarised light beam, having a core (1), preferably centrally located and a photonic cladding (2) surrounding the core (1), wherein the photonic cladding (2) comprises nanoholes filled with air or nanorods (3), said fibre having the refractive index n CORE of the core (1) higher than the effective refractive index n eff of the photonic cladding (2) and higher than the refractive index of the nanoholes or rods (3), and within the core (1), preferably at its geometrical centre, a nano-inclusion (4) is arranged, characterized in that the nano-inclusion (4) is filled with a dielectric having the refractive index n INC different from the refractive index n CORE of the core (1), and the said dielectric is glass optionally with an addition of a metal or metal alloy. The present invention also relates to a method of manufacturing such a fibre using the stack-and-draw technique.