Astigmatic tomography of orbital angular momentum superpositions

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.

arXiv commentSubmitted to Physical Rivew A

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Cited by in corpus (6)

• Generation of high-quality terahertz OAM mode based on soft-aperture difference frequency generation
• Machine learning recognition of light orbital-angular-momentum superpositions
• Gouy phase-matched angular and radial mode conversion in four-wave mixing
• Tracking the Evolution of Near-Field Photonic Qubits into High-Dimensional Qudits via State Tomography
• Single-shot, full characterization of the spatial wavefunction of light fields via Stokes tomography
• Full characterization of spin-orbit coupled photons via spatial-Stokes measurement