Generation of Optical Vortex Arrays Using Single-Element Reversed-Wavefront Folding Interferometer
Figure 1
Schematic diagrams for generating optical vortex arrays: (a) by using collimated beams in modified Mach-Zehnder interferometer; (b) by using spherical wavefronts in single element common path interferometer. BE: beam expander, SF: spatial filter, CBS: cubic beam splitter, CCD: charge-coupled device, IFP: interference fringe pattern.
