Beyond 5G fronthaul based on FSO using spread spectrum codes and graphene modulators

D Neves, A Sanches, R Nobrega, H Mrabet, I Dayoub… - Sensors, 2023 - mdpi.com
High data rate coverage, security, and energy efficiency will play a key role in the continued
performance scaling of next-generation mobile systems. Dense, small mobile cells based on …

[HTML][HTML] Aiming for high-capacity multi-modal free-space optical transmission leveraging complete modal basis sets

Z Hu, Y Li, Z Chen, DM Benton, AAI Ali, M Patel… - Optics …, 2023 - Elsevier
Free-space optical (FSO) communication has gained much interest due to its capability of
providing not only a cost-efficient solution where the optical fiber is too expensive or too …

Satellite-to-ground optical downlink model using mode mismatching multi-mode photonic lanterns

W Guo, Y Li, J Chen, T Jin, S Jiao, J Wu, J Qiu… - Optics …, 2023 - opg.optica.org
Photonics lanterns (PLs) provide an effective mode diversity solution to mitigate atmospheric
turbulence interference in free-space optical communications (FSOC). This paper presents …

Utilizing structured modal beams in free-space optical communications for performance enhancement

A Willner, H Zhou, X Su, H Song… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
There is a growing interest in utilizing structured beams in free-space optical (FSO)
communications. With uniquely tailored spatial amplitude and phase profiles, structured …

Adaptive-optics-based turbulence mitigation in a 400 Git/s free-space optical link by multiplexing Laguerre–Gaussian modes varying both radial and azimuthal spatial …

X Su, Z Jiang, Y Duan, H Zhou, H Song, K Pang, C Liu… - Optics letters, 2023 - opg.optica.org
In general, atmospheric turbulence can degrade the performance of free-space optical
(FSO) communication systems by coupling light from one spatial mode to other modes. In …

Advances in Multi-Channel Mid-IR Free-Space Optical Communications

AE Willner, H Zhou, Y Duan, Z Jiang… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Free-space optical (FSO) communications in the mid-infrared (mid-IR) wavelength region
has gained increasing interest due, in part, to the lower atmospheric loss than at lower …

Turbulence-resistant free space optical communication via chaotic block-matching and 3D filtering

T Wu, H Mou, Y He, Y Liu, S Song, L Zhao, L Guo - Optics Express, 2024 - opg.optica.org
In this paper, we propose a chaotic block-matching and three-dimensional (C-BM3D)
filtering algorithm to remove the noise and enhance the security in the turbulent channel of …

100-Channel Arrayed Waveguide Grating Based on Thin Film Lithium Niobate on Insulator (LNOI)

H Tu, Y Zhang, G Li, X Dai, Y Wu… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Arrayed waveguide grating (AWG) is one of the primary devices of wavelength division
multiplexing (WDM) technology with comprehensive advantages of stable performance, high …

Air/Water Path Switching with Beam Steering for Water Distance/Turbidity Adaptive Underwater Optical Wireless Communication Network: Concept and …

K Kuwahara, H Nagami, K Tanaka… - 2024 Optical Fiber …, 2024 - ieeexplore.ieee.org
We conducted full-duplex class 1 eye-safe transmission experiments, including 4K video
demonstrating robust connectivity to maximize transmission capacity under optimal paths by …

Advanced Digital Signal Processing for High-Capacity Mode-Division Multiplexed Free-Space Optical Communications

Z Hu, Z Chen, Y Li, DM Benton, AAI Ali… - 2023 23rd …, 2023 - ieeexplore.ieee.org
Spatial modes provide a potential dimension to boost the capacity of free-space optical
(FSO) communication systems. Various modal basis sets can be used. For a given aperture …