Abstract
We report on the highly effective broadband generation of azimuthally and radially polarized cylindrical vector beams directly from an incident optical vortex of topological charge ±1 with twisted low-birefringent optical fibres. This approach has an important advantage of almost avoiding the fundamental mode excitation, which can spoil the cylindrical symmetry of the generated beam. The effect of the rotation of a linear birefringence axis on this generation process is revealed.
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