Results 11 to 20 of about 31,002 (214)

Crosstalk Suppression in Structured Light Free-Space Optical Communication

open access: yesIEEE Open Journal of the Communications Society, 2020
Using space as an additional degree of freedom is one possible solution to cope with future bandwidth issues. In free-space optics (FSO), spatial multiplexing of structured light modes is limited by the impact of the atmospheric turbulence.
Dmitrii Briantcev   +3 more
doaj   +1 more source

Free-Space Communication Turbulence Compensation by Optical Phase Conjugation

open access: yesIEEE Photonics Journal, 2020
A new scheme is proposed to mitigate the atmospheric turbulence effect in coherent free-space optical (FSO) communications by employing optical phase conjugation (OPC) to compensate the signal distortion.
Junfan Chen   +7 more
doaj   +1 more source

Advances and Prospects of Free Space Optical Communication in Space Applications [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی
This research aims to investigate the emerging technology of free-space optical communication and its applications in the space industry. By employing light beams as information carriers, this technology offers significantly higher bandwidth and enhanced
Javad Haghshenas
doaj   +1 more source

Multi-Spot Tracking System for Free-Space Optical Communication [PDF]

open access: yesRadioengineering, 2022
This article describes a multi-spot tracking system for free space optic communications systems suitable for tracking optical terminals observed within the field-of-view of a wide angle telescope.
P. Skryja, J. Poliak, O. Wilfert
doaj  

Differential Signalling in Free-Space Optical Communication Systems

open access: yesApplied Sciences, 2018
In this paper, we review the differential signalling techniques and investigate its implementation of in free-space optical (FSO) communication systems.
Mojtaba Mansour Abadi   +5 more
doaj   +1 more source

SAC-OCDMA over Hybrid FTTx Free Space Optical Communication Networks

open access: yesJournal of Telecommunications and Information Technology, 2015
This paper presents an investigation of Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) over hybrid Fiber-to-the-x (FTTx) Free Space Optical (FSO) link under different weather conditions.
Ratna Kalos Zakiah Sahbudin   +4 more
doaj   +1 more source

G‐MGF based performance analysis of coherent FSO systems with multiple receivers

open access: yesElectronics Letters, 2021
This letter investigates the performance of coherent free‐space optical systems with multiple receivers especially through the generalised moment‐generating function based approach.
Seongah Jeong, Jinkyu Kang, Hoojin Lee
doaj   +1 more source

Free Space Optical Communication in Long-Reach Unidirectional Ring-Architecture Fiber Network

open access: yesIEEE Access, 2020
In the work, a ring-constructed wavelength-division-multiplexing (WDM) access system for delivering multiple free space optical (FSO) wireless signals is investigated.
Chien-Hung Yeh   +4 more
doaj   +1 more source

Single-Layer Phase Screen With Pointing Errors for Free Space Optical Communication

open access: yesIEEE Access, 2021
Single-layer phase screen is a classical, simple and accurate approach for simulating the optical field under turbulence, and it is generally used in free space optical communication (FSOC).
Xin Liu   +4 more
doaj   +1 more source

Enhanced Neural Architecture for Real-Time Deep Learning Wavefront Sensing

open access: yesSensors
To achieve real-time deep learning wavefront sensing (DLWFS) of dynamic random wavefront distortions induced by atmospheric turbulence, this study proposes an enhanced wavefront sensing neural network (WFSNet) based on convolutional neural networks (CNN).
Jianyi Li   +4 more
doaj   +1 more source

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