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Optical Communications and Networks [PDF]

open access: yesIEEE Communications Magazine, 2020
As the second issue in 2020 of the Optical Communications and Networks Series (OCNS), this series selects articles that cover interesting advances on devices, systems and networks regarding optical communications and networking. We are pleased to witness active innovations in this area, which will make the data exchange and processing in the future ...
Zuqing Zhu   +2 more
openaire   +6 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

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

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

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

A High Performance Distributed Optical Fiber Sensor Based on Φ-OTDR for Dynamic Strain Measurement

open access: yesIEEE Photonics Journal, 2017
A high-performance distributed optical fiber sensor based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) for dynamic strain measurement has been proposed.
Xuping Zhang   +6 more
doaj   +1 more source

Wavelength Reuse for Short-Reach Optical Access Network Utilizing MDM

open access: yesIEEE Photonics Journal, 2017
Wavelength reuse has been proposed as an effective solution to realize colorless optical network units (ONUs) for next-generation passive optical network with simplified maintenance and reduced cost.
Yuanxiang Chen   +9 more
doaj   +1 more source

MDM-TDM PON Utilizing Self-Coherent Detection-Based OLT and RSOA-Based ONU for High Power Budget

open access: yesIEEE Photonics Journal, 2016
A cost-effective mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM PON) utilizing a self-coherent detection for upstream signal at optical line terminal (OLT) and a high-gain reflective semiconductor optical ...
Yuanxiang Chen   +11 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

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