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arXiv · 1811.02939

Astigmatic tomography of orbital angular momentum superpositions

B. Pinheiro da Silva·D. S. Tasca·E. F. Galvão·A. Z. Khoury
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Abstract

We use astigmatic transformations to characterize two-dimensional superpositions of Orbital Angular Momentum (OAM) states in laser beams. We propose two methods for doing this, both relying only on astigmatic transformations, viewed as rotations on the Poincaré sphere, followed by imaging. These methods can be used as a tomographic tool for communication protocols based on optical vortices.

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B. Pinheiro da Silva, D. S. Tasca, E. F. Galvão, A. Z. Khoury. 2018-11-07. Astigmatic tomography of orbital angular momentum superpositions. https://doi.org/10.1103/physreva.99.043820

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