Structured light under turbulence

• URL: http://arxiv.org/abs/2608.04090v1
• Date: Tue, 04 Aug 2026 18:00:02 GMT
• Title: Structured light under turbulence
• Abstract summary: Structured light has emerged as a promising resource for high-capacity and secure free-space optical communication.<n>We investigate the resilience of different transverse mode structures of an optical beam with respect to the random action of turbulence.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Structured light has emerged as a promising resource for high-capacity and secure free-space optical communication, where atmospheric turbulence remains a major source of signal degradation. In this work, we investigate the resilience of different transverse mode structures of an optical beam with respect to the random action of turbulence. A spatial light modulator (SLM) is programmed to apply amplitude and phase modulation corresponding to the desired transverse mode, which is then transmitted through a turbulent medium emulated by a second SLM. Laguerre-Gauss, Hermite-Gauss, and Airy beams are investigated through the resulting intensity distributions measured with a camera. Different figures of merit are used to evaluate and compare the resilience of these modes.

Related papers

• Analytical model for structured light propagation through a turbulent atmosphere [0.0]
  We develop a straightforward framework for the propagation of spatial light modes through a turbulent atmosphere.<n>Built upon the split-step approach with the mode-based optical field representation, it directly assesses how turbulence-induced phase fluctuations deplete the optical power in the original mode.<n>This power transfer scales linearly with the propagation distance in a uniform channel, yielding a simple solution for arbitrary distances.
  arXiv  Detail & Related papers  (2026-05-28T17:47:23Z)
• PAD: Phase-Amplitude Decoupling Fusion for Multi-Modal Land Cover Classification [49.37555541088792]
  Phase-Amplitude Decoupling (PAD) is a frequency-aware framework that separates phase (modality-shared) and amplitude (modality-complementary) components.<n>This work establishes a new paradigm for physics-aware multi-modal fusion in remote sensing.
  arXiv  Detail & Related papers  (2025-04-27T07:21:42Z)
• Spatial super-resolution in nanosensing with blinking emitters [79.16635054977068]
  We propose a method of spatial resolution enhancement in metrology (thermometry, magnetometry, pH estimation, and similar methods) with blinking fluorescent nanosensors.<n>We believe that blinking fluorescent sensing agents being complemented with the developed image analysis technique could be utilized routinely in the life science sector.
  arXiv  Detail & Related papers  (2024-02-27T10:38:05Z)
• Squeezing for Broadband Multidimensional Variational Measurement [55.2480439325792]
  We show that optical losses inside cavity restrict back action exclusion due to loss noise. We analyze how two-photon (nondegenerate) and conventional (degenerate) squeezing improve sensitivity with account optical losses.
  arXiv  Detail & Related papers  (2023-10-06T18:41:29Z)
• Shaping Single Photons through Multimode Optical Fibers using Mechanical Perturbations [55.41644538483948]
  We show an all-fiber approach for controlling the shape of single photons and the spatial correlations between entangled photon pairs. We optimize these perturbations to localize the spatial distribution of a single photon or the spatial correlations of photon pairs in a single spot.
  arXiv  Detail & Related papers  (2023-06-04T07:33:39Z)
• Angular dependency of spatial frequency modulation in diffusion media [7.481044907091694]
  The angular deviation between the control and probe beams could be utilized as a degree of freedom to modulate the SF of the probe beam. Our findings could be broadly applied to the fields of quantum information processing, all-optical image manipulation and imaging through diffusive media.
  arXiv  Detail & Related papers  (2022-06-25T07:06:42Z)
• Restoring and tailoring very high dimensional spatial entanglement of a biphoton state transmitted through a scattering medium [0.0]
  A momentum entangled biphoton state with a giant dimensionality of 8000 is retrieved and manipulated when only one photon of the pair is transmitted through a thin scattering medium.
  arXiv  Detail & Related papers  (2022-06-01T07:55:26Z)
• Shaping entangled photons through emulated turbulent atmosphere [0.0]
  We show that we can use the bright laser beam that pumps spontaneous parametric down conversion to control the spatial correlations between entangled photons for compensating their scattering. We use a spatial light modulator and Kolmogorov's turbulence model to emulate atmospheric turbulence in the lab, and enhance the entangled photons' signal by a factor of fifteen using pump optimization.
  arXiv  Detail & Related papers  (2022-02-17T13:26:06Z)
• Fast Generation and Detection of Spatial Modes of Light using an Acousto-Optic Modulator [62.997667081978825]
  spatial modes of light provide a high-dimensional space that can be used to encode both classical and quantum information. Current approaches for dynamically generating and measuring these modes are slow, due to the need to reconfigure a high-resolution phase mask. We experimentally realize this approach, using a double-pass AOM to generate one of five orbital angular momentum states. We are able to reconstruct arbitrary states in under 1 ms with an average fidelity of 96.9%.
  arXiv  Detail & Related papers  (2020-07-31T14:58:30Z)
• Managing spectral properties and Schmidt mode content of squeezed vacuum light using sum-frequency converter [0.0]
  SFG-gate seeded by squeezed light is investigated in frequency Schmidt modes. The effect of swapping between modes in the gate is found. It allows to enhance squeezed light in a set of modes without loss of photon correlations.
  arXiv  Detail & Related papers  (2020-06-19T11:55:58Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.