Neural network classification of beams carrying orbital angular momentum after propagating through controlled experimentally generated optical turbulence

WA Jarrett, S Avramov-Zamurovic, JM Esposito… - JOSA A, 2024 - opg.optica.org
We generate an alphabet of spatially multiplexed Laguerre–Gaussian beams carrying
orbital angular momentum, which are demultiplexed at reception by a convolutional neural …

Detection and classification of radial carpet beams propagating through an underwater medium

M Khodadadi Karahroudi… - Journal of the Optical …, 2023 - opg.optica.org
A radial carpet (RC) optical beam is a type of structured light beam that is classified as a
subfamily of combined half-integer Bessel-like beams. Coherent detection of such structured …

1D speckle-learned structured light recognition

PS Badavath, V Raskatla, V Kumar - Optics Letters, 2024 - opg.optica.org
In this Letter, we introduce a novel, to the best of our knowledge, structured light recognition
technique based on the 1D speckle information to reduce the computational cost. Compared …

[HTML][HTML] Experimental high sensitive local identification of azimuthal index of Laguerre–Gauss beams

M Siano, B Paroli, S Cialdi, S Olivares, MGA Paris… - Optics …, 2024 - Elsevier
In this work we experimentally demonstrate high sensitive strictly-local identification of
azimuthal index of Laguerre–Gauss (LG) beams, with less than 160 photon counts. To this …

Machine-learning-assisted orbital angular momentum recognition using nanostructures

C Sharma, PS Badavath, P Supraja… - Journal of the Optical …, 2024 - opg.optica.org
The recognition of orbital angular momentum (OAM) in light beams holds significant
importance in optical communication. The majority of current OAM recognition techniques …

Experimental realization of optical communication link with intensity degenerate orbital angular momentum beams

C Sharma, PS Badavath, V Kumar - Journal of Optics, 2024 - Springer
This study introduces a significant advancement in optical communication by exploring the
experimental astigmatic speckle patterns generated from orbital angular momentum (OAM) …

Phase screen prediction using deep phase network for FSO links

M Li, Z Wu, T Wang, P Zhang, M Cvijetic - Applied Optics, 2024 - opg.optica.org
Due to the presence of air turbulence in free-space optical (FSO) links, random fluctuations
in wavefront phase and amplitude of the optical signal are reduced after it propagates …

Deep-learning-assisted optical communication with discretized state space of structural light

M Zhang, DX Chen, P Ruan, J Liu, JL Zhao… - arXiv preprint arXiv …, 2024 - arxiv.org
The rich structure of the transverse spatial mode of structural light has facilitated its
applications in quantum information and optical communication. The Laguerre-Gaussian …

Generating terahertz multiple vortex beams using graphene metasurfaces

AS Zainud-Deen, HA Malhat, AR Sebak… - Optical and Quantum …, 2024 - Springer
This paper investigates the generation of orbital angular momentum vortex beams using a
graphene metasurface in the terahertz frequency band. The proposed design consists of …

Machine learning meets singular optics: speckle-based structured light demultiplexing

V Raskatla, PS Badavath… - … Conference on Correlation …, 2024 - spiedigitallibrary.org
In this paper, the advancements in structured light beams recognition using speckle-based
convolutional neural networks (CNNs) have been presented. Speckle fields, generated by …