Results 81 to 90 of about 5,292,719 (305)

Histogram Based Clustering for Nonlinear Compensation in Long Reach Coherent Passive Optical Networks

Applied Sciences, 2019
In order to meet the increasing capacity requirements, network operators are extending their optical infrastructure closer to the end-user while making more efficient use of the resources.
Ivan Aldaya, Elias Giacoumidis, Geraldo de Oliveira, Jinlong Wei, Julián Leonel Pita, Jorge Diego Marconi, Eric Alberto Mello Fagotto, Liam Barry, Marcelo Luis Francisco Abbade   +8 more
doaj   +1 more source

A New DSP-Based Physical Layer Encryption Technique Applied to Passive Optical Networks

, 2018
Point-to-multipoint architecture poses serious security problems to passive optical networks (PONs). In this paper, we propose the use of a new digital signal processing (DSP)-based technique to improve the confidentiality of signals traveling through ...
Marcelo Luis Francisco Abbade, Melissa de Oliveira Santos, Silva Lessa, Leonardo [UNESP], Leonardo Silva Lessa, Aldaya, Ivan [UNESP], Ivan Aldaya, Oliveira Santos, Melissa De [UNESP], Afonso Jose do Prado, Francisco Abbade, Marcelo Luis [UNESP], Jose Do Prado, Afonso [UNESP]   +9 more
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Integrated Sensing and Communication Over Optical Fiber: A Communication-Centric Cross-Layer View From Long-Haul to Short-Reach Networks

IEEE Photonics Journal
Integrated sensing and communication over optical fiber (ISACoF) is a promising route to upgrade widely deployed fiber infrastructures from passive transmission media to self-aware multifunctional platforms. Yet ISACoF design requirements differ markedly
Jingchuan Wang, Maoqi Liu, Liwang Lu, Huan He, Changyuan Yu, Alan Pak Tao Lau, Chao Lu   +6 more
doaj   +1 more source

One x 4 InP SOI optical switch replaces passive splitters [PDF]

, 2013
Wavelength-division multiplexing (WDM) passive optical network (PON) architectures typically use passive splitters to increase the number of subscribers in a fiberoptic communications system.
Raz, O Oded, Raz, Oded, Raz, O.
core   +2 more sources

Desert Plant Inspired Hierarchical Nanofibrous Membranes for Integrated Solar Desalination and Heavy Metal Remediation

Advanced Functional Materials, EarlyView.
An Alhagi maurorum inspired hierarchical composite membrane (NFCu) was developed by integrating heavy metal remediation and solar‐driven interfacial evaporation in a single platform. Beyond the photothermal effect, a localized photocatalytic process is realized on the CuO surface, deepening the mechanistic understanding of light–matter–water ...
Yuqiong He, Ronggang Luo, Shengbo Ge, Kaixin Jiang, Kirsten Dyer, Xiaojian Zhou, Ben Bin Xu, Xuehua Zhang, Guanben Du, Kaimeng Xu   +9 more
wiley   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

A comparison of modulation formats for passive optical networks

Optics Express, 2011
The sensitivity of the four-dimensional modulation format, polarization-switched quadrature phase shift keying (PS-QPSK), is compared with polarization division multiplexed QPSK (PDM-QPSK), binary phase shift keying (PDM-BPSK) and 8-ary quadrature amplitude modulation (PDM-8QAM) at a constant bitrate (12.5 Gbit/s) using a preamplified signal to improve
Domaniç, Lavery, Carsten, Behrens, Seb J, Savory   +2 more
openaire   +2 more sources

Optical networks and interconnects

The rapid evolution of communication technologies, such as 5G and beyond, relies on optical networks to support the challenging and ambitious requirements that include both capacity and reliability.
Chen, Jiajia,, Mas-Machuca, Carmen,, Wosinska, Lena,, Ruffini, Marco,   +3 more
core   +1 more source

Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]

, 2006
A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus, Markus Knapek, Martin Brechtelsbauer, Joachim Horwath, Horwath, Joachim, Wilkerson, Brandon, Brandon Wilkerson, Brechtelsbauer, Martin, Bernhard Epple, Epple, Bernhard   +9 more
core   +1 more source