Cylindrical Vector Beams

Cylindrical vector beams (CVB) are solutions of the solutions of the vector wave equation that obey cylindrical symmetry both in amplitude and polarization. We proposed a method to efficiently produce light beams with radial, azimuthal, and hybrid polarization, through a few-mode fiber excited by a Laguerre–Gaussian beam. With different input polarization we can selectively excite different combinations of modes from the LP11 group. We showed how to transform the output beam into a cylindrical vector beam in free-space through various polarization transformations.