Direct detection receiver for vortex beam

Kupferman, Judy; Arnon, Shlomi

doi:10.1364/josaa.35.001543

Cited by 6 publications

(3 citation statements)

References 33 publications

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“…We show numerically and experimentally that the resulting beam has a sharp intensity profile, is propagation invariant and its radius has a controllable size independent of the total topological charge. We believe that the presented results can find useful applications in areas such as free space communications [17,18], micro manipulation [19,20], optical modulation [21] and vortex shaping [22,23]. The obtained results show that this beam could be useful in free space communications and optical manipulation.…”

Section: Introductionmentioning

confidence: 63%

Partially coherent Bessel vortex superposition with linear charge increase and aligned maxima

Rickenstorff-Parrao

Gómez-Pavón

Ostrovsky

et al. 2019

J. Opt.

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In this paper, the generation of a partially coherent optical vortex composed of the incoherent superposition of N coaxial Bessel vortex beams with linearly increasing topological charges and aligned intensity maxima is proposed. To generate this beam, concentric ring slits with increasing topological charges and random phase shifts are optically Fourier transformed. The radii of the ring slits are chosen in such a way that the maxima of their corresponding Bessel functions are coincident. It is demonstrated that the resulting beam radius is independent of the topological charges involved in the superposition and the beam is propagation invariant. The Bessel vortex addition is experimentally generated by means of a phase-only liquid crystal spatial light modulator.

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Section: Introductionmentioning

confidence: 63%

Partially coherent Bessel vortex superposition with linear charge increase and aligned maxima

Rickenstorff-Parrao

Gómez-Pavón

Ostrovsky

et al. 2019

J. Opt.

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“…1,2 In particular, light carrying orbital angular momentum (OAM) different from zero has been used in many applications ranging from quantum simulation 3,4 and quantum engineering 5,6 to quantum and classical communications. [7][8][9][10][11][12][13][14] Recently, OAM modes have been particularly studied for their uses in biomedical applications of imaging and diagnosis. [15][16][17] In particular, they have been exploited for the development of noninvasive diagnostics on tissues.…”

Section: Introductionmentioning

confidence: 99%

Transmission of vector vortex beams in dispersive media

et al. 2020

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Scattering phenomena affect light propagation through any kind of medium from free space to biological tissues. Finding appropriate strategies to increase the robustness to scattering is the common requirement in developing both communication protocols and imaging systems. Recently, structured light has attracted attention due to its seeming scattering resistance in terms of transmissivity and spatial behavior. Moreover, correlation between optical polarization and orbital angular momentum (OAM), which characterizes the so-called vector vortex beams (VVBs) states, seems to allow for the preservation of the polarization pattern. We extend the analysis by investigating both the spatial features and the polarization structure of vectorial optical vortexes propagating in scattering media with different concentrations. Among the observed features, we find a sudden swift decrease in contrast ratio for Gaussian, OAM, and VVB modes for concentrations of the adopted scattering media exceeding 0.09%. Our analysis provides a more general and complete study on the propagation of structured light in dispersive and scattering media.

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“…Hitherto, this has proven difficult since wavefronts quickly become scrambled in most applications. Beams with orbital angular momentum (OAM or vortex beam) have been used previously in classical and quantum communication [29][30][31][32] and more recently in biomedical applications for noninvasive imaging and diagnosis of tissues 33 . Recent studies indicate possible benefits of using light beams with orbital angular momentum for deep penetration and higher transmittance propagation through dispersive and scattering media 34,35 .…”

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confidence: 99%

Conservation of orbital angular momentum and polarization through biological waveguides

Bezryadina

Pérez

Wilson

et al. 2022

Preprint

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A major roadblock to the development of photonic sensors is the scattering associated with many biological systems. We show the conservation of photonic states through optically self-arranged biological waveguides, for the first time, which can be implemented to transmit light through scattering media. The conservation of optical properties of light through biological waveguides allows for the transmission of high bandwidth information with low loss through scattering media. Here, we experimentally demonstrate the conservation of polarization state and orbital angular momentum of light through a self-arranged biological waveguide, several centimeters long, in a sheep red blood cell suspension. We utilize nonlinear optical effects to self-trap cells, which form waveguides at 532 nm and 780 nm wavelengths. Moreover, we use the formed waveguide channels to couple and guide probe beams without altering the information. The formed biological waveguides are in a sub-diffusive scattering regime, so the photons’ information degrades insignificantly over several centimeters of propagation through the scattering media. Our results show the potential of biological waveguides as a methodology for the development of novel photonic biosensors, biomedical devices that require optical wireless communication, and the development of new approaches to noninvasive biomedical imaging.

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Direct detection receiver for vortex beam

Cited by 6 publications

References 33 publications

Partially coherent Bessel vortex superposition with linear charge increase and aligned maxima

Partially coherent Bessel vortex superposition with linear charge increase and aligned maxima

Transmission of vector vortex beams in dispersive media

Conservation of orbital angular momentum and polarization through biological waveguides

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