Multi-gigabit/s underwater optical communication link using orbital angular momentum multiplexing

Baghdady, Joshua; Miller, Keith; Morgan, Kaitlyn; Byrd, Matthew J.; Osler, Sean; Ragusa, Robert; Li, Wenzhe; Cochenour, Brandon; Johnson, Eric

doi:10.1364/oe.24.009794

Cited by 196 publications

(54 citation statements)

References 21 publications

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“…Baghdady et al realized 3Gbit/s UOC system with two OAM modes multiplexing for link distance 2.96m by taking advantage of this characteristics of OAM modes [17]. Similarly, Ren et al achieved a higher transmission rate, 40Gbit/s, for a UOC system by using four OAM multiplexed modes [18].…”

Section: Introductionmentioning

confidence: 99%

Influence of oceanic turbulence on propagation of Airy vortex beam carrying orbital angular momentum

Wang

Yang²,

Zhao

2019

Optik

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With Rytov approximation theory, we derive the analytic expression of detection probability of Airy vortex beam carrying orbital angular momentum (OAM) through an anisotropic weak oceanic turbulence. We investigate the influences of turbulence parameters and beam parameters on the propagation properties of Airy-OAM beam. The numerical simulation results show that the anisotropic oceanic turbulence with a lower dissipation rate of temperature variance, smaller ratio of temperature and salinity contributions to the refractive index spectrum, higher dissipation rate of kinetic energy per unit mass of fluid, bigger inner scale factor, larger anisotropic coefficient causes the larger detection probability of Airy-OAM beam. Moreover, the Airy-OAM beam with a smaller topological charge, larger main ring radius and longer wavelength, has strong resistance to oceanic turbulent interference. Additionally, the detection probability decreases with the increase of receiving aperture size. In comparison with Laguerre-Gaussian-OAM beam, Airy-OAM beam has more anti-interference to turbulence when its topological charge is larger than 5 due to its non-diffraction and self-healing characteristics. The results are useful for underwater optical communication link using Airy-OAM beam.

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Section: Introductionmentioning

confidence: 99%

Influence of oceanic turbulence on propagation of Airy vortex beam carrying orbital angular momentum

Wang

Yang²,

Zhao

2019

Optik

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“…Shown in Figure 8 6 are the captured images of beams of charge numbers m=±4 after propagation through a phase plate of charge m=-4. In Figure 8 6 (a) only the m=-4 beam is allowed to propagate across the channel before reaching the m=-4 phase plate and becoming a beam of charge m=-8.…”

Section: Resultsmentioning

confidence: 99%

Blue-light digital communication in underwater environments utilizing orbital angular momentum

et al. 2016

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Underwater optical communication has recently become the topic of much investigation as the demands for underwater data transmission have rapidly grown in recent years. The need for reliable, high-speed, secure underwater communication has turned increasingly to blue-light optical solutions. The blue-green visible wavelength window provides an attractive solution to the problem of underwater data transmission thanks to its low attenuation, where traditional RF solutions used in free-space communications collapse. Beginning with GaN laser diodes as the optical source, this work explores the encoding and transmission of digital data across underwater environments of varying turbidities. Given the challenges present in an underwater environment, such as the mechanical and optical turbulences that make proper alignment difficult to maintain, it is desirable to achieve extremely high data rates in order to allow the time window of alignment between the transmitter and receiver to be as small as possible. In this paper, work is done to increase underwater data rates through the use of orbital angular momentum. Results are shown for a range of data rates across a variety of channel types ranging in turbidity from that of a clear ocean to a dirty harbor.

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“…A possible way to increase the transmission capacity of UWOC link is to use multiple OAM modes, as demonstrated in [132]- [136] and reviewed in [137]. Baghdady et al performed experimental demonstration of a 3 Gbit/s underwater communication link, using two 445 nm lasers, and successfully transmitted the signal over a distance of 2.94 m modulated on a simple on-off keying non-return to zero (OOK-NRZ) scheme [134]. In [135], Ren et al reported an aggregated data rate of 40 Gbit/s, using 4 green OAM modes over 1.2 m of turbulent tap water.…”

Section: Underwater Communicationmentioning

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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Multi-gigabit/s underwater optical communication link using orbital angular momentum multiplexing

Cited by 196 publications

References 21 publications

Influence of oceanic turbulence on propagation of Airy vortex beam carrying orbital angular momentum

Influence of oceanic turbulence on propagation of Airy vortex beam carrying orbital angular momentum

Blue-light digital communication in underwater environments utilizing orbital angular momentum

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

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