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Optical wireless communication [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
Optical wireless communication has attracted significant interest recently in industry and academia. This special issue features a collection of inter-related papers with the intention to cover all necessary multidisciplinary challenges to realize optical wireless networks.
Harald Haas   +2 more
openaire   +4 more sources

Bandwidth Control in Computer- Generated Holography

open access: yesIEEE Photonics Journal, 2023
The Fourier transform between the time and frequency signals of light enables highly efficient band usage in optical communications. Analogously, the Fourier transform between the wavefield and wavevector distributions in the optical spatial diffraction ...
Mian Wu   +6 more
doaj   +1 more source

Investigation of Fan In and Fan Out Technologies for Multi Core Fiber

open access: yesGuangtongxin yanjiu, 2021
Spatial division multiplexing based on the multi-core fiber has been believed as a promising and effective way to overcome the foreseeable capacity crunch of single mode fiber transmission. Fan-in Fan-out (FIFO) technology for multi-core fiber is the key
Ying QIU   +3 more
doaj   +1 more source

An Internal Defect Detection Algorithm for Concrete Blocks Based on Local Mean Decomposition-Singular Value Decomposition and Weighted Spatial-Spectral Entropy

open access: yesEntropy, 2023
Within the scope of concrete internal defect detection via laser Doppler vibrometry (LDV), the acquired signals frequently suffer from low signal-to-noise ratios (SNR) due to the heterogeneity of the concrete’s material properties and its rough surface ...
Xu Tian   +4 more
doaj   +1 more source

Concrete Multi-Type Defect Classification Algorithm Based on MSSMA-SVM

open access: yesSensors, 2022
In order to realize the automatic classification of internal defects for non-contact nondestructive testing of concrete, a concrete multi-type defect classification algorithm based on the mixed strategy slime mold algorithm support vector machine (MSSMA ...
Xu Tian   +4 more
doaj   +1 more source

Probabilistically Shaped PAM-8 Transmission With Simplified Volterra Equalizer

open access: yesIEEE Photonics Journal, 2022
Intensity-modulation direct-detection (IM/DD) probabilistically shaped (PS) 8-level pulse-amplitude modulation (PAM) signal is promising for high-speed intra-data-center networks.
Mingyi Gao   +3 more
doaj   +1 more source

Dynamic Fano Resonance in Thin Fiber Taper Coupled Cylindrical Microcavity

open access: yesIEEE Photonics Journal, 2016
Fano resonance results from interference between a background and a resonant scattering, which produces the asymmetrical lineshape. A cylindrical microcavity naturally possesses localized whispering gallery mode (WGM) and delocalized radiation mode, and ...
Yadong Miao   +5 more
doaj   +1 more source

Multiple-Ring-Core FM-EDF for Weakly-Coupled MDM Amplification With Low Differential Modal Gain

open access: yesIEEE Photonics Journal, 2021
Recently weakly-coupled mode-division multiplexing (MDM) transmission systems and networks based on ultralow-modal-crosstalk few-mode fiber (FMF) have attracted much interest, for which optical amplification technologies with low modal crosstalk and two ...
Jinglong Zhu   +7 more
doaj   +1 more source

Quantum optical waveform conversion [PDF]

open access: yes, 2010
Currently proposed architectures for long-distance quantum communication rely on networks of quantum processors connected by optical communications channels [1,2].
A. P. Vandevender   +3 more
core   +2 more sources

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