Optical chaotic signal recovery in turbulent environments using a programmable optical processor

Sara Zaminga; Andres Martinez; Heming Huang; Damien Rontani; Francesco Morichetti; Andrea Melloni; Frédéric Grillot

doi:10.1038/s41377-025-01784-3

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Optical chaotic signal recovery in turbulent environments using a programmable optical processor

Original Articles

- Optical chaotic signal recovery in turbulent environments using a programmable optical processor
- Light: Science & Applications Vol. 14, Issue 5, Pages: 1345-1353(2025)
- Affiliations：
  
  1.LTCI Télécom Paris, Institut Polytechnique de Paris, Palaiseau 91120, France
  2.Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milano 20133, Italy
  3.Chair in Photonics, LMOPS UR 4423 Lab, CentraleSupélec & Université de Lorraine, Metz 57070, France
  4.Center for High Technology Materials, University of New-Mexico, Albuquerque, NM 87106, USA
- Author bio：
  
  Sara Zaminga (sara.zaminga@telecom-paris.fr)
- Funds：
- DOI：10.1038/s41377-025-01784-3
  CLC：
- Received：16 September 2024，
  
  Revised：24 January 2025，
  
  Accepted：11 February 2025，
  
  Published Online：21 March 2025，
  
  Published：31 May 2025
- Accepted：
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Zaminga, S. et al. Optical chaotic signal recovery in turbulent environments using a programmable optical processor. Light: Science & Applications, 14, 1345-1353 (2025).
DOI：

Zaminga, S. et al. Optical chaotic signal recovery in turbulent environments using a programmable optical processor. Light: Science & Applications, 14, 1345-1353 (2025). DOI： 10.1038/s41377-025-01784-3.

摘要

Abstract

Optical chaos offers a promising approach to establishing secure communication at high data rates in a shared physical channel

like optical fibers and free space. However

the required synchronization between the transmitter and the receiver can be severely impaired by the nonidealities of the optical link. In particular

free-space optical communications are affected by atmospheric turbulence

which causes beam scintillation and results in time-varying fading of the optical intensity at the receiver side. In this work

we investigate experimentally the propagation of a chaotic signal in an indoor optical link with controllable synthetic turbulence

and we show that the degradation of chaos properties caused by the turbulent environment can be fully mitigated in the optical domain using an adaptive multi-aperture receiver. The proposed receiver integrates a two-dimensional array of optical antennas and a programmable optical processor (POP) on a silicon photonic platform. With respect to a conventional single-aperture receiver

the POP-assisted receiver recovers the complex dynamics of the optical chaos

ensuring a high degree of correlation between the transmitted signal and the received signal

even for a high degree of turbulence. Our results demonstrate the possibility of establishing and maintaining reliable

secure communication in a chaos-based crypto-system in a free space optical link of km-range length.

关键词

Keywords

references

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