Features of Interference of Kummer Beams for Optical Measurement Problems

Lyakhovich, Natalia V.; Sokolenko, Bogdan V.; Voititskii, V. I.; Prisyazhnyuk, A. V.

doi:10.1134/s1063785022040198

Tech. Phys. Lett.

2022

DOI: 10.1134/s1063785022040198

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Features of Interference of Kummer Beams for Optical Measurement Problems

Natalia V. Lyakhovich

Bogdan V. Sokolenko

V. I. Voititskii

et al.

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Cited by 2 publications

References 11 publications

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Polarization structure of optical vortices in inclined Laguerre–Gaussian beams passed through a uniaxial crystal

Egorov,

Rubass

2024

J. Opt. Soc. Am. A

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The work shows that in linearly polarized Laguerre–Gaussian beams passing through an anisotropic medium at an angle to the optical axis of the crystal, the distribution of optical vortices is devoid of axial symmetry. It is shown that the trajectories of movement of polarization singularities in the plane of the Laguerre–Gauss beam are different for different cases of input linear polarization at angles γ=±45∘ and there is an exchange of optical vortices, provided that the sign of the topological charge is preserved. It is shown that when the axis of an anisotropic medium is tilted, the movement of optical vortices occurs, accompanied by topological reactions of creation, destruction, or displacement of optical vortices to the periphery of the beam. It is characteristic that at angles of inclination by linear polarization γ=+45∘, topological reactions of creation and annihilation occur, and at angles γ=−45∘, topological reactions of displacement of optical vortices to the periphery of the beam occur.

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Polarization structure of optical vortices in inclined Laguerre–Gaussian beams passed through a uniaxial crystal

Egorov,

Rubass

2024

J. Opt. Soc. Am. A

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Propagation characteristics of the Kummer beam in turbulence with an anisotropic tilt angle

Zhou¹,

Wang²,

Yang³

et al. 2023

J. Opt. Soc. Am. B

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Different from prevailing assumptions, turbulence cells display anisotropic tilt angles, rendering the environment in optical communication significantly more complex. In light of this, we develop expressions for the spatial coherence radius and the detection probability of the orbital angular momentum (OAM) states of the Kummer beam in turbulence with an anisotropic tilt angle. Through our investigation into the impact of various angles on optical communication, we identify suitable angles for mitigating the effects of atmospheric turbulence. Our findings indicate that when the zenith angle is equal to the anisotropic tilt angle and the azimuth angle is π, the disturbance of turbulence on the detection probability of OAM states is relatively weak. In slant paths, the variability in turbulence cells’ scales with altitude, particularly the inner scale, cannot be ignored. Consequently, a peak value emerges in the OAM detection probability owing to the variation of inner scales with altitude. Furthermore, the exponent of the amplitude factor and the logarithmic axicon parameter of the Kummer beam exhibit a significant impact on the received signal, especially at short propagation distances. We also investigate some other parameters of the turbulence and Kummer beam to enhance our comprehension of the propagation characteristics of a Kummer beam in a slant path. Overall, our results have practical implications in wireless optical communication systems such as remote sensing and radar communications.

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Features of Interference of Kummer Beams for Optical Measurement Problems

Cited by 2 publications

References 11 publications

Polarization structure of optical vortices in inclined Laguerre–Gaussian beams passed through a uniaxial crystal

Polarization structure of optical vortices in inclined Laguerre–Gaussian beams passed through a uniaxial crystal

Propagation characteristics of the Kummer beam in turbulence with an anisotropic tilt angle

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