Results 51 to 60 of about 25,321 (341)

Toward the Shannon Limit of Spectral Efficiency

open access: yesIEEE Photonics Journal, 2011
Progress in high-capacity optical communication systems in 2010 is reviewed, with spectral efficiency (SE) as the main figure of merit. Advanced modulation formats, such as quadrature amplitude modulation (QAM) and orthogonal frequency-division ...
L.-S. Yan, X. Liu, W. Shieh
doaj   +1 more source

Experimental wavelength division multiplexed photon pair distribution

open access: yes, 2012
We have experimentally implemented the distribution of photon pairs produced by spontaneous parametric down conversion through telecom dense wavelength division multiplexing filters.
Agha, Imad   +4 more
core   +1 more source

Quantum information processing with space-division multiplexing optical fibres

open access: yes, 2020
The optical fibre is an essential tool for our communication infrastructure since it is the main transmission channel for optical communications. The latest major advance in optical fibre technology is spatial division multiplexing (SDM), where new fibre
Lima, Gustavo, Xavier, Guilherme B.
core   +1 more source

A versatile source of polarisation entangled photons for quantum network applications [PDF]

open access: yes, 2012
We report a versatile and practical approach for generating high-quality polarization entanglement in a fully guided-wave fashion. Our setup relies on a high-brilliance type-0 waveguide generator producing paired photon at a telecom wavelength associated
Amandine Issautier   +11 more
core   +3 more sources

A wide-band perfect light absorber at mid-wave infrared using multiplexed metal structures [PDF]

open access: yes, 2012
We experimentally demonstrate a wide band near perfect light absorber in the mid-wave infrared region using multiplexed plasmonic metal structures. The wide band near perfect light absorber is made of two different size gold metal squares multiplexed on a thin dielectric spacing layer on the top of a thick metal layer in each unit cell.
arxiv   +1 more source

Mesoscopic Structures Reveal the Network Between the Layers of Multiplex Datasets [PDF]

open access: yesPhys. Rev. E 92, 042806 (2015), 2015
Multiplex networks describe a large variety of complex systems, whose elements (nodes) can be connected by different types of interactions forming different layers (networks) of the multiplex. Multiplex networks include social networks, transportation networks or biological networks in the cell or in the brain.
arxiv   +1 more source

Optical Transport Architecture for the Fronthaul Segment in a 5G NR Network based on Polarization and Wavelength Multiplexing

open access: yesRevista Facultad de Ingeniería, 2023
This paper presents the design of an optical transport architecture for the fronthaul segment in a 5G New Radio (NR) network based on both polarization and wavelength multiplexing using Polarization Splitters (PS) and an Arrayed Waveguide Grating (AWG),
Ingrid-Katherine Balero-Lozada   +2 more
doaj   +1 more source

Extracting Information from Multiplex Networks [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science 26.6 (2016): 065306, 2016
Multiplex networks are generalized network structures that are able to describe networks in which the same set of nodes are connected by links that have different connotations. Multiplex networks are ubiquitous since they describe social, financial, engineering and biological networks as well.
arxiv   +1 more source

Coherent Optical DFT-Spread OFDM

open access: yes, 2011
We consider application of the discrete Fourier transform-spread orthogonal frequency-division multiplexing (DFT-spread OFDM) technique to high-speed fiber optic communications.
Wang, Fanggang, Wang, Xiaodong
core   +2 more sources

Silicon-Based-Chip Multiplexing Technologies and Devices

open access: yesDianxin kexue, 2015
As the demands of the data communications increase quickly for the applications of cloud-computing as well as data centers,optical interconnects have been very attractive because of the unique advantages on the aspects of low power consumption,high speed
Daoxin Dai, Jian Wang, Sitao Chen
doaj   +2 more sources

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