Structured light is routinely used in free-space optical communication channels, both classical and quantum, where information encoded the spatial structure of mode for increased bandwidth. Both real-world experimentally simulated turbulence conditions have revealed that structured modes are perturbed some manner by turbulence, resulting amplitude phase distortions, consequently, much attention has focused on whether one type more robust than another, but with seemingly inconclusive...

Light's spatial degree of freedom is emerging as a potential resource for myriad applications, in both classical and quantum domains, including secure communication, sensing imaging. However, it has been repeatedly shown that complex medium (atmosphere, optical fibre, turbid media, etc.) can perturb the amplitude, phase polarization structured light fields leading to degradation their performance. A promising solution this use invariant modes whom appears transparent. While creation...

Vectorial structured light, where the polarization is inhomogeneously distributed in space, has found a myriad of applications both 2D and 3D optical fields. Here, we present an experimental study invariance distortion vectorial light through real-world medium atmospheric turbulence. We show that amplitude structure are severely distorted by turbulent medium, yet non-separability these two degrees freedom remains invariant. monitor this under range beam types conditions, over extended time...

Vectorial states of light, where the polarization is inhomogeneously distributed in space, have gained considerable interest context structured but their inherent parity has hitherto been overlooked. Now, revealed as a fundamental degree freedom vectorial light that can be acted on with customized metasurfaces, opening path to high capacity classical and quantum communication.

Nonseparability in classical and quantum states of light gives rise to the notions (local) (nonlocal) entanglement, usually defined as global features fields states. Here we use concurrence a measure this nonseparability show that it can be spatially resolved, revealing regions maximum with no nonseparability. We topical examples vectorial structured its analog, hybrid spatial mode polarization entangled states, test approach on both local nonlocal forms entanglement. Our work has wide...

Abstract When light propagates through aberrated optical systems, the resulting degradation in amplitude and phase has deleterious effects, for example, on resolution imaging, spot sizes focussing, beam quality factor of output beam. Traditionally, this is either pre- or post-corrected by adaptive optics conjugation. Here, we consider medium as a complex channel determine corresponding eigenmodes which are impervious perturbation. We employ quantum-inspired approach apply it to tilted lens...

As an alternative to traditional adaptive optics systems, wavefront shaping techniques show promise in controlling light propagation through turbulent channels. This study explores the feasibility of measuring transmission matrix and using it enhance communication conditions.

Here we report on the theoretical development and numerical experimental validation of eigenmodes atmospheric turbulence for robust transport reliable free space optical communication.

We report on the first real-world experimental evidence of invariance non-separability vectorial light through atmospheric turbulence and its spatially varying nature in transverse plane.

Structured light is routinely used in free-space optical communication channels, both classical and quantum, where information encoded the spatial structure of mode for increased bandwidth. Unlike polarisation, perturbed through such channels by atmospheric turbulence, consequently, much attention has focused on whether one type more robust than another, but with seemingly inconclusive contradictory results. Both real-world experimentally simulated turbulence conditions have revealed that...

When light propagates through aberrated optical systems, the resulting degradation in amplitude and phase has deleterious effects, for example, on resolution imaging, spot sizes focusing, beam quality factor of output beam. Traditionally, this is either pre- or post-corrected by adaptive optics conjugation. Here, we consider medium as a complex channel determine corresponding eigenmodes which are impervious perturbation. We employ quantum-inspired approach apply it to tilted lens our example...

Here we outline a new approach to modal-based optical communication that does not require the spatial modes be recognised, demonstrating near noise-free data transmission with over 50 vectorial patterns of light across atmospheric turbulence for state-of-the-art.

Structured light is routinely used in free space optical communication channels, both classical and quantum, where information encoded the spatial structure of mode for increased bandwidth. Unlike polarisation, perturbed through such channels by atmospheric turbulence, consequently, much attention has focused on whether one type more robust than another, but with seemingly inconclusive contradictory results. Both real-world experimentally simulated turbulence conditions have revealed that...