Fluctuations of the orbital angular momentum of a laser beam, carrying an optical vortex, in the turbulent atmosphere

Aksenov, V. P.; Pogutsa, Cheslav E.

doi:10.1070/qe2008v038n04abeh013576

Cited by 29 publications

(18 citation statements)

References 3 publications

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“…In that area, where the Bessel-like structure of a vortex Bessel-Gaussian beam is saved still, the expressions describing behaviour of a variance of the orbital angular momentum of the Bessel-Gaussian beam at any option values 2 0 β are received. Here For a variance of the orbital angular momentum, using results of articles 3,7 , in this case it is possible to result the following approached expression:…”

Section: Basic Relationsmentioning

confidence: 98%

“…In work 6 presence of correlation of the orbital angular momentum of the Laguerre-Gaussian beams with an azimuthal phase of complex electric field has been proved. Researches of fluctuations of the orbital angular momentum of the Laguerre-Gaussian beams propagating in turbulent atmosphere, are presented in article 7 . In work 8 features of carrying over of an optical vortex during propagation of the partially coherent Bessel-Gaussian beams have been studied.…”

Section: Introductionmentioning

confidence: 99%

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Variance of fluctuations of the orbital angular momentum of Bessel beam in turbulent atmosphere

Lukin

2012

SPIE Proceedings

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In this article, the theoretical researches of variance of fluctuations of the orbital angular momentum of the Bessel optical beam propagating in turbulent atmosphere have been developed. The variance of fluctuations of Bessel-Gaussian beam on beam parameters: a transverse wave number of optical radiation, a Fresnel number of the transmitting aperture and a topological charge are in details analyzed. It is shown that a variance of fluctuations of the orbital angular momentum of a vortex Bessel-Gaussian beam during propagation in turbulent atmosphere it is essential less than the similar characteristic of a Laguerre-Gaussian beam.

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Section: Basic Relationsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Variance of fluctuations of the orbital angular momentum of Bessel beam in turbulent atmosphere

Lukin

2012

SPIE Proceedings

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“…P. Aksenov and Ch. E. Pogutsa gave the mathematical form of the total OAM of a propagating light field, from which they were able to prove that the total OAM for homogeneous media is conserved, while it can change for inhomogeneous media [9]. Such a change is closely related to the spatial distribution of the refractive index (RI).…”

Section: Introductionmentioning

confidence: 99%

Study on the Relationship Between Symmetric Property of Optical Orbital Angular Momentum Spectrum and Critical Points of Phase in an Inhomogeneous Non-Random Media

Xu¹,

Jiang²,

Zhou³

et al. 2021

Front. Phys.

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In the aero-optic turbulent boundary layer (TBL), there exist very rich air flow structures that fall into a wide range of scales, with the smallest being roughly of the order of the optical wavelength. However, these fine spatial variations cannot be neglected when one is dealing with light propagation through such structures, since both the amplitude and phase of a light wave undergo modulations. In this study, we studied the influence of TBL on the angular momentum spectrum of light and found that there exists critical point of the azimuthal distribution of the disturbance phase that determines the symmetric properties of the expansion spectrum.

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“…However, there are disadvantages as well. First, such modulated photon wavefronts can be degraded in propagation due to variations in index of refraction, where a photon's polarization is more robust [23,1] Second, an apertured beam diverges. For OAM photons, this divergence is proportional to the square root of the angular momentum, and substantially larger apertures will be needed.…”

Section: Introductionmentioning

confidence: 99%

Higher dimensional quantum communication in a curved spacetime: an efficient simulation of the propagation of the wavefront a photon

Miller¹,

Alsing²,

Ahn³

2018

Quantum Information Science, Sensing, and Computation X

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A photon with a modulated wavefront can produce a quantum communication channel in a larger Hilbert space. For example, higher dimensional quantum key distribution (HD-QKD) can encode information in the transverse linear momentum (LM) or orbital angular momentum (OAM) modes of a photon. This is markedly different than using the intrinsic polarization of a photon. HD-QKD has advantages for free space QKD since it can increase the communication channels tolerance to bit error rate (BER) while maintaining or increasing the channels bandwidth. We describe an efficient numerical simulation of the propagation photon with an arbitrary complex wavefront in a material with an isotropic but inhomogeneous index of refraction. We simulate the waveform propagation of an optical vortex in a volume holographic element in the paraxial approximation using an operator splitting method. We use this code to analyze an OAM volume-holographic sorter. Furthermore, there are analogue models of the evolution of a wavefront in the curved spacetime environs of the Earth that can be constructed using an optical medium with a given index of refraction. This can lead to a work-bench realization of a satellite HD-QKD system. arXiv:1812.09644v1 [gr-qc]

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Fluctuations of the orbital angular momentum of a laser beam, carrying an optical vortex, in the turbulent atmosphere

Cited by 29 publications

References 3 publications

Variance of fluctuations of the orbital angular momentum of Bessel beam in turbulent atmosphere

Variance of fluctuations of the orbital angular momentum of Bessel beam in turbulent atmosphere

Study on the Relationship Between Symmetric Property of Optical Orbital Angular Momentum Spectrum and Critical Points of Phase in an Inhomogeneous Non-Random Media

Higher dimensional quantum communication in a curved spacetime: an efficient simulation of the propagation of the wavefront a photon

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