Transmission of multi-dimensional signals for next generation optical communication systems

Yi, Anlin; Liu, Yan; Pan, Yan; Jiang, Lin; Chen, Zhiyu; Pan, Wei; Luo, Bin

doi:10.1016/j.optcom.2017.07.046

Cited by 11 publications

(5 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the novel properties of OAM modes, such as orthogonality between different modes and infinite topological charges, it provides potential application prospects for free-space optical communication (FSOC). 2,3 Exceeding the capabilities of traditional multiplexing, such as time, wavelengths, frequency, and polarization, 4,5 OAM modes possess the potential to provide a new degree of freedom for multiplexing data transmission.…”

Section: Introductionmentioning

confidence: 99%

Integrated coherent beam combining system for orbital-angular-momentum shift-keying-based free-space optical links

Shu,

Zhang,

Chang

et al. 2024

Adv. Photon. Nexus

View full text Add to dashboard Cite

Orbital-angular-momentum (OAM) multiplexing technology offers a significant dimension to enlarge communication capacity in free-space optical links. The coherent beam combining (CBC) system can simultaneously realize OAM multiplexing and achieve high-power laser output, providing substantial advantages for long-distance communication. Herein, we present an integrated CBC system for freespace optical links based on OAM multiplexing and demultiplexing technologies for the first time, to the best of our knowledge. A method to achieve flexible OAM multiplexing and efficient demultiplexing based on the CBC system is proposed and demonstrated both theoretically and experimentally. The experimental results exhibit a low bit error rate of 0.47% and a high recognition precision of 98.58% throughout the entire data transmission process. By employing such an ingenious strategy, this work holds promising prospects for enriching ultra-long-distance structured light communication in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Integrated coherent beam combining system for orbital-angular-momentum shift-keying-based free-space optical links

Shu,

Zhang,

Chang

et al. 2024

Adv. Photon. Nexus

View full text Add to dashboard Cite

show abstract

“…[5][6][7][8] A vortex beam has a spiral phase structure exp(ilϕ), where l is the topological charge and ϕ is the angular coordinate. [9,10] OAM vortex beams have a large number of applications in different fields, such as the communication system, [11,12] optical micro-manipulation, [13] super resolution imaging [14] and so on, due to their distinctive properties.…”

Section: Introductionmentioning

confidence: 99%

High efficiency and broad bandwidth terahertz vortex beam generation based on ultra-thin transmission Pancharatnam–Berry metasurfaces*

Li¹,

Zhao²,

Meng³

et al. 2021

Chinese Phys. B

View full text Add to dashboard Cite

The terahertz (THz) vortex beam generators are designed and theoretically investigated based on single-layer ultra-thin transmission metasurfaces. Noncontinuous phase changes of metasurfaces are obtained by utilizing Pancharatnam–Berry phase elements, which possess different rotation angles and are arranged on two concentric rings centered on the origin. The circularly polarized incident THz beam could be turned into a cross-polarization transmission wave, and the orbital angular momentum (OAM) varies in value by lℏ. The l values change from ± 1 to ± 5, and the maximal cross-polarization conversion efficiency that could be achieved is 23%, which nearly reaches the theoretical limit of a single-layer structure. The frequency range of the designed vortex generator is from 1.2 THz to 1.9 THz, and the generated THz vortex beam could keep a high fidelity in the operating bandwidth. The propagation behavior of the emerged THz vortex beam is analyzed in detail. Our work offers a novel way of designing ultra-thin and single-layer vortex beam generators, which have low process complexity, high conversion efficiency and broad bandwidth.

show abstract

“…time-division multiplexing, frequency-division multiplexing, space-division multiplexing, and polarization-division multiplexed [4][5][6][7][8]. To future improve the data transmission rate, multi-dimensional multiplexing combing no less than two physical dimensions is a promising candidate for next-generation communication systems [9,10].…”

Section: Introductionmentioning

confidence: 99%

Vanadium dioxide embedded frequency reconfigurable metasurface for multi-dimensional multiplexing of terahertz communication

Wang¹,

Yang²,

Deng³

et al. 2021

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Multi-dimensional multiplexing based on the broadband metasurface is a promising candidate for the next generation terahertz (THz) communication system, which has become a research focus for data transmission rate and channel capacity enhancement. This paper proposes a THz frequency-reconfigurable metasurface hybridized with vanadium dioxide (VO2) for communication multiplexing on both dimensions of orbital angular momentum and frequency. Theoretically, 4 × n channel (n can be any positive integer) orthogonal coaxial beams carrying different data flow can be simultaneously generated based on the proposed metasurface in the tunable operating frequency band. The simulation results verify that the THz incident waves can be converted into orthogonal coaxial beams with different topological charges or frequencies, propagating perpendicular to the metasurface, when eight-channel oblique incident plane waves with varying angles or at various frequencies are reflected by the metasurface. The multi-dimensional multiplexing can be achieved in the frequency range of 0.29–0.39 THz and 0.24–0.34 THz with the VO2 switching between its fully insulating and metallic state. The proposed metasurface is expected to enable multi-band and broadband applications and has significant potential in high-speed and high-capacity THz communication.

show abstract

Transmission of multi-dimensional signals for next generation optical communication systems

Cited by 11 publications

References 77 publications

Integrated coherent beam combining system for orbital-angular-momentum shift-keying-based free-space optical links

Integrated coherent beam combining system for orbital-angular-momentum shift-keying-based free-space optical links

High efficiency and broad bandwidth terahertz vortex beam generation based on ultra-thin transmission Pancharatnam–Berry metasurfaces*

Vanadium dioxide embedded frequency reconfigurable metasurface for multi-dimensional multiplexing of terahertz communication

Contact Info

Product

Resources

About