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Jaime E. Cisternas on Muck Rack

Jaime E. Cisternas

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Spatial-diversity detection of optical vortices for OAM signal modulation

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By Jaime A. Anguita, Jaime E. Cisternas
| osapublishing.org
Abstract We propose a method for identifying orbital angular momentum (OAM) states within a vortex superposition using a Shack–Hartmann (SH) sensor as a spatial-diversity detector. We define a local OAM at every pixel of the SH image, from which we construct an OAM spectrum. The topological charges are determined from the OAM spectrum using a low-complexity algorithm, resulting in estimates that are robust to beam wandering.
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