Figure 3
From: A compact diffractive sorter for high-resolution demultiplexing of orbital angular momentum beams
(a) Phase pattern of log-pol sorter with three-copies fan-out. Parameters of the optical transformation: a = 64 μm, b = 900 μm, f = 8.5 mm, phase-corrector radius (red dashed line) ρ2 = 700 μm, unwrapper outer radius ρ1 = 1200 μm. (b.1-3) Details of the fan-out unwrapper zone at optical microscope. (c.1-2) Details of the double phase-corrector region at optical microscope.
