Multiparameter encrypted orbital angular momentum multiplexed holography based on multiramp helicoconical beams

Zhang, Nian; Xiong, Bin; Zhang, Xiang; Yuan, Xiao

doi:10.1117/1.apn.2.3.036013

Cited by 29 publications

(4 citation statements)

References 29 publications

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“…Moreover, rather than relying solely on the phase-only modulation, we execute the exact complex-amplitude modulation to maintain the amplitude information and prevent violation of the linear superposition principle. [35] In the end, we conduct an experiment to validate the theoretical analysis, and both simulations and experiments confirm the feasibility of this strategy.…”

Section: Introductionmentioning

confidence: 72%

“…Furthermore, based on OAM selectivity, an OAM-multiplexing holographic image can be reconstructed by an OAM-multiplexing hologram that superposes multiple OAM-selective holograms. Owing to OAMpreserving, -selective, and -multiplexing holograms, OAM holography has attracted a lot of attention and has been extensively studied in holographic video displays, [28,29] polarization encrypted holography, [30] nonlinear holography, [31,32] multiparameter encrypted holography, [33][34][35] and deep learning-enabled holography. [36,37] In this paper, superposed LG beams-based OAM holography is proposed theoretically and implemented experimentally.…”

Section: Introductionmentioning

confidence: 99%

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Superposed Laguerre‐Gaussian Beams‐Based Orbital Angular Momentum Holography

Zeng,

Zhao

2024

Laser & Photonics Reviews

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Orbital angular momentum (OAM) holography implements OAM of light as an information carrier to reconstruct holographic images, due to a physically unbounded set of orthogonal OAM modes. Here, superposed Laguerre‐Gaussian (LG) beams are employed as incident beams to achieve OAM holography. Notably, this scheme utilizes exact complex‐amplitude modulation, as opposed to mere phase‐only modulation, ensuring the maintenance of amplitude information. In the absence of a matching field, the output images retain the properties of incident beams with a varying number of bright petals in each sampling pixel. On the other hand, when specific incident beams are illuminated, the output images can be reconstructed with multiple matching fields that lead to different intensities. It is essential to recognize that the bright spot in each sampling pixel of the output image achieves its peak intensity only when the matching field is the conjugate of the incident light field. This work offers a novel perspective on reconstructing holographic images through various matching fields and modulating the brightness of distinct holographic images in OAM‐multiplexing holography. Additionally, a theoretically infinite number of bright petals in each sampling pixel can also serve as information carriers in holography.

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Section: Introductionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Superposed Laguerre‐Gaussian Beams‐Based Orbital Angular Momentum Holography

Zeng,

Zhao

2024

Laser & Photonics Reviews

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“…A newly proposed approach, MHC-OAM multiplexed holography, introduces new degrees of freedom by multiplexing different angular momentum modes of light beams, enabling the simultaneous transmission of multiple information channels. 28 Overall, the use of OAM in holography has the potential to revolutionize information transmission and storage, and ongoing research seeks to further optimize this technology.…”

Section: Introductionmentioning

confidence: 99%

Multidimensional multiplexing holography based on optical orbital angular momentum lattice multiplexing

Xia,

Xie,

Yuan

2024

Adv. Photon. Nexus

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.The use of orbital angular momentum (OAM) as an independent dimension for information encryption has garnered considerable attention. However, the multiplexing capacity of OAM is limited, and there is a need for additional dimensions to enhance storage capabilities. We propose and implement orbital angular momentum lattice (OAML) multiplexed holography. The vortex lattice (VL) beam comprises three adjustable parameters: the rotation angle of the VL, the angle between the wave normal and the z axis, which determines the VL’s dimensions, and the topological charge. Both the rotation angle and the VL’s dimensions serve as supplementary encrypted dimensions, contributing azimuthally and radially, respectively. We investigate the mode selectivity of OAML and focus on the aforementioned parameters. Through experimental validation, we demonstrate the practical feasibility of OAML multiplexed holography across multiple dimensions. This groundbreaking development reveals new possibilities for the advancement of practical information encryption systems.

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“…As delineated by Allen et al 1 in 1992, vortex fields have become a focal point of research in light fields due to their capability to carry orbital angular momentum (OAM). This property has garnered substantial interest across various sectors, encompassing high-dimensional classical and quantum information communications, 2-4 micro-particle manipulation, 5,6 optical measurements, 7,8 optical imaging, 9,10 and processing. [11][12][13] A persistent challenge encountered is light diffraction, which results in increased beam size and divergence as the mode index augments.…”

Section: Introductionmentioning

confidence: 99%

Iso-propagation vortices with OAM-independent size and divergence toward future faster optical communications

Yan,

Chen,

Long

et al. 2024

Adv. Photon.

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Recognized in the 1990s, vortex beams' ability to carry orbital angular momentum (OAM) has significantly contributed to applications in optical manipulation and high-dimensional classical and quantum information communication. However, inherent diffraction in free space results in the inevitable expansion of beam size and divergence contingent upon the OAM, limiting vortex beams' applicability in areas such as spatial mode multiplexing communication, fiber-optic data transmission, and particle manipulation. These domains necessitate vortex beams with OAM-independent propagation characteristics. We introduce iso-propagation vortices (IPVs), vortex beams characterized by OAM-independent propagation behavior, achieved through precise radial index configuration of Laguerre-Gaussian beams. IPVs display notable transmission dynamics, including a reduced quality factor, resilience post-damage, and decreased and uniform modal scattering under atmospheric turbulence. Their distinctive attributes render IPVs valuable for potential applications in imaging, microscopy, optical communication, metrology, quantum information processing, and light-matter interactions. Notably, within optical communication, the case study suggests that the IPV basis, due to its OAM-independent propagation behavior, provides access to a more extensive spectrum of data channels compared with conventional spatial multiplexing techniques, consequently augmenting information capacity.

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Multiparameter encrypted orbital angular momentum multiplexed holography based on multiramp helicoconical beams

Cited by 29 publications

References 29 publications

Superposed Laguerre‐Gaussian Beams‐Based Orbital Angular Momentum Holography

Superposed Laguerre‐Gaussian Beams‐Based Orbital Angular Momentum Holography

Multidimensional multiplexing holography based on optical orbital angular momentum lattice multiplexing

Iso-propagation vortices with OAM-independent size and divergence toward future faster optical communications

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