Decoding algorithm for vortex communications receiver

Kupferman, Judy; Arnon, Shlomi

doi:10.1088/2040-8986/aa98b1

Cited by 9 publications

(5 citation statements)

References 51 publications

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“…This work shows that OAM beams can be a valuable contribution to optical wireless communication (OWC) for medical implants, optical biological imaging, as well as recent innovative applications of medical diagnosis.Ever since it was shown in 1992 that Laguerre Gauss beams carry orbital angular momentum (OAM) beams, many studies have investigated this phenomenon and have brought a new era in optical research 1,2 . The properties of OAM have been explored in many areas such as wired/wireless communication [3][4][5][6] , imaging and medical diagnosis 7,8 , particle traps 9,10 , and quantum encryption 11,12 . New methods for creating OAM beams have been explored and their propagation through diffuse media has been studied.…”

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confidence: 99%

OAM light propagation through tissue

Biton

Kupferman

Arnon

2021

Sci Rep

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A major challenge in use of the optical spectrum for communication and imaging applications is the scattering of light as it passes through diffuse media. Recent studies indicate that light beams with orbital angular momentum (OAM) can penetrate deeper through diffuse media than simple Gaussian beams. To the best knowledge of the authors, in this paper we describe for the first time an experiment examining transmission of OAM beams through biological tissue with thickness of up to a few centimeters, and for OAM modes reaching up to 20. Our results indicate that OAM beams do indeed show a higher transmittance relative to Gaussian beams, and that the greater the OAM, the higher the transmittance also up to 20, Our results extend measured results to highly multi scattering media and indicate that at 2.6 cm tissue thickness for OAM of order 20, we measure nearly 30% more power in comparison to a Gaussian beam. In addition, we develop a mathematical model describing the improved permeability. This work shows that OAM beams can be a valuable contribution to optical wireless communication (OWC) for medical implants, optical biological imaging, as well as recent innovative applications of medical diagnosis.

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confidence: 99%

OAM light propagation through tissue

Biton

Kupferman

Arnon

2021

Sci Rep

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“…plications is provided in [151]. An algorithm for encoding and decoding information, using the patterns of the OAM modes that can potentially be suitable for data center applications, is proposed in [152].…”

Section: Wireless Indoor Connectionsmentioning

confidence: 99%

Communicating Using Spatial Mode Multiplexing: Potentials, Challenges, and Perspectives

Trichili

Park

Zghal

et al. 2019

IEEE Commun. Surv. Tutorials

191

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Time, polarization, and wavelength multiplexing schemes have been used to satisfy the growing need of transmission capacity. Using space as a new dimension for communication systems has been recently suggested as a versatile technique to address future bandwidth issues. We review the potentials of harnessing the space as an additional degree of freedom for communication applications including free space optics, optical fiber installation, underwater wireless optical links, on-chip interconnects, data center indoor connections, radio frequency and acoustic communications. We focus on the orbital angular momentum (OAM) modes and equally identify the challenges related to each of the applications of spatial modes and the particular OAM modes in communication. We further discuss the perspectives of this emerging technology. Finally, we provide the open research directions and we discuss the practical deployment of OAM communication links for different applications. ). 4 in the future. We also summarize the open problems and the future research directions. A discussion of the practicability and cost of multi-OAM communication is also included. II. OAM POTENTIALS A. Free Space Optical CommunicationFSO is a license free wireless communication configuration that has recently received much interest for a variety of applications. FSO is an attractive solution for last mile connectivity problems, particularly for communication networks, when the installation of fiber optics is costly or not possible [66]. FSO can be also used to establish inter-building secure communication, and can be deployed as a backup to optical fibers. Wireless optical communication can guarantee a line-of-sight (LoS) high bit rate wireless transmission over long distances, up to several kilometers. Furthermore, FSO communication is considered as a promising technique to scale down bandwidth challenges in future 5G networks [67].Multiple wavelength FSO provides better transmission, as demonstrated in [68], [69]. Data can be mapped on advanced modulation formats to achieve high bit rates and high spectral efficiency levels [70]- [72]. Another option is multiple-input and multiple-output (MIMO) FSO communication in which multiple lasers are positioned to transmit Gaussian beams to multiple receiving apertures [73]. Over the last few years, it has been proven that it is possible to transmit information over spatially structured light beams [21], [74], [75] including OAM beams and plane waves. Our focus is on the OAM modes of light.The first PoC communication experiment incorporating OAMs in free space was carried out in 2004 by Gibson and co-workers [21]. Over a 15-meter long link, 8 -spaced values were chosen along the Gaussian beam as an alphabet for the communication. OAM beams were generated and detected using two light modulators. Since then, much progress has been made and free space transmission capacity of over 1 Tbit/s is, today, possible [76]- [78]. By performing three dimensional multiplexing, Huang and co-workers were able to attain a 100 Tbi...

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“…The generation, detection and application of vortex beams is the focus of both domestic and international research. Vortex beams have established a complete theory and mature techniques in the fields of communications, imaging, optical tweezers, and detection [4][5][6][7]. At present, the application of vortex beams to optical precision detection is still in the exploration and development phase, with numerous new applications to be explored and studied.…”

Section: Introductionmentioning

confidence: 99%

Application of vortex beam interference in displacement measurement

Gao,

Hu,

yang

et al. 2023

Fourteenth International Conference on Information Optics and Photonics (CIOP 2023)

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Decoding algorithm for vortex communications receiver

Cited by 9 publications

References 51 publications

OAM light propagation through tissue

OAM light propagation through tissue

Communicating Using Spatial Mode Multiplexing: Potentials, Challenges, and Perspectives

Application of vortex beam interference in displacement measurement

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