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Cylindrical vector beam generator using a two-element interferometer
preprintposted on 2023-11-30, 18:50 authored by Job Mendoza-Hernandez, Manuel F. Ferrer-Garcia, Jorge Arturo Rojas-Santana, Dorilian Lopez-Mago
We realize a robust and compact cylindrical vector beam generator which consists of a simple two-element interferometer composed of a beam displacer and a cube beamsplitter. The interferometer operates on the higher-order Poincare sphere transforming a homogeneously polarized vortex into a cylindrical vector (CV) beam. We experimentally demonstrate the transformation of a single vortex beam into all the well-known CV beams and show the operations on the higher-order Poincare sphere according to the control parameters. Our method offers an alternative to the Pancharatnam-Berry phase optical elements and has the potential to be implemented as a monolithic device.