Vector flat-top beam with Higher-order

Abstract

In this paper, we introduce a new kind of vector flat-top-laser beam;we call it higher-order vector flat-top beam. We generate such laserbeam, by the incoherent superposition of two orthogonal modes inpolarization (Horizontal and vertical polarizations). The two basicmodes are; the fundamental-Gaussian beam (LG 00 ) and one Higher-order-Vortex-Laguerre-Gaussian beam (LG 0l ) with differenttopological charges of (l = 1, l = 2, and l = 3). The resulting beamhas almost a uniform intensity, and it is invariant under propagation inlossless systems. We believe that the resulting laser beam will haveapplications in laser material processing and laser micromachining.