All-optical networks based on the nonlinear propagation of Bessel beams in a photorefractive crystal

Yue Chai; Nicolas Marsal; Delphine Wolfersberger

doi:10.1117/12.3022417

20 June 2024 All-optical networks based on the nonlinear propagation of Bessel beams in a photorefractive crystal

Yue Chai, Nicolas Marsal, Delphine Wolfersberger

Proceedings Volume PC13004, Nonlinear Optics and its Applications 2024; PC130040A (2024) https://doi.org/10.1117/12.3022417
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

By investigating the nonlinear propagation of Bessel beams (BBs) in a photorefractive crystal, we demonstrate their ability to induce complex 3D waveguides with up to 9 outputs by one single diffracting BB or two counterpropagating (CP) BBs. By tuning the parameters such as the beam size, applied electric field, and input beam power, our platform enables all-optical control of output intensity levels and numbers. Besides, the spatiotemporal dynamics are investigated in the case of CP BBs, revealing the threshold value of nonlinearity for time-periodic, quasi-periodic, and turbulent dynamics with spatially localized instabilities. Finally, the continuous modulation of the orbital angular momentum is realized, and an expanded modulation range is discussed in both stationary and dynamic regimes. These results hold promise for all-optical switches, dynamical optical components, and OAM-based components for all-optical networks.

Conference Presentation

Citation Download Citation

Yue Chai, Nicolas Marsal, and Delphine Wolfersberger "All-optical networks based on the nonlinear propagation of Bessel beams in a photorefractive crystal", Proc. SPIE PC13004, Nonlinear Optics and its Applications 2024, PC130040A (20 June 2024); https://doi.org/10.1117/12.3022417

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KEYWORDS

Nonlinear crystals

Crystals

Bessel beams

Laser crystals

Modulation

All optical switching

Optical components

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