Results 21 to 30 of about 47,783 (291)

Actively Tunable Terahertz Switches Based on Subwavelength Graphene Waveguide

open access: yesNanomaterials, 2018
As a new field of optical communication technology, on-chip graphene devices are of great interest due to their active tunability and subwavelength scale.
Zhongyi Guo   +6 more
doaj   +1 more source

Comparing Optical Packet Switching And Optical Burst Switching

open access: yesDaffodil International University Journal of Science and Technology, 1970
The switching is an important part of the telecommunication networks over the years for transferring and handling voice and data through the traditional switching nodes existing in the telecommunication networks. Various developments were seen in the recent years which resulted in increasing data transfer capabilities of the transmission networks all ...
openaire   +2 more sources

Analysis of a Silicon Reconfigurable Feed-Forward Optical Delay Line

open access: yesIEEE Photonics Journal, 2014
We analyze a silicon reconfigurable feed-forward optical delay line (ODL) composed of cascaded Mach-Zehnder interferometer (MZI) switches and waveguide delay pairs.
Zhilong Chen, Linjie Zhou, Jianping Chen
doaj   +1 more source

Chirality in Nonlinear Optics and Optical Switching [PDF]

open access: yesMolecular Crystals and Liquid Crystals, 1993
Chirality in molecular opto-electronics is limited sofar to the use of optically active liquid crystals and a number of optical phenomena are related to the helical macroscopic structure obtained by using one enantiomer, only. In this paper, the use of chirality in nonlinear optics and optical switching is demonstrated.
Meijer, E.W., Feringa, B.L.
openaire   +3 more sources

A Thermally Reconfigurable Photonic Switch Utilizing Drop Cast Vanadium Oxide Nanoparticles on Silicon Waveguides

open access: yesAdvanced Photonics Research
Photonic switches play a vital role in optical communications and computer networks for establishing and releasing connections of optical signals. With the growing demand for ultra‐compact switches in high‐speed optical computing and communications ...
Gregory Tanyi   +8 more
doaj   +1 more source

Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

open access: yesScientific Reports, 2021
Integrated photonic devices or circuits that can execute both optical computation and optical data storage are considered as the building blocks for photonic computations beyond the von Neumann architecture.
Rajib Ratan Ghosh, Anuj Dhawan
doaj   +1 more source

A Universal Method for Constructing N-Port Reconfigurable Non-Blocking Optical Switches on a Silicon Chip

open access: yesIEEE Access, 2022
We propose a novel method for building ${N}$ -port nonblocking optical switches on a silicon chip. The rationale behind this is a bidirectional merge-replace-mirror method. It offers nonblocking interconnections among multiple inputs and outputs.
Li Zhao, Peng Shi
doaj   +1 more source

Optical burst switching with large switching overhead [PDF]

open access: yes2006 IEEE International Conference on Communications, 2006
The optical burst switching (OBS) schemes to date assume that the switching overhead at intermediate nodes is either negligible or can be considered as part of the processing delay of the control packet. In this paper, we will show that the switching overhead can have a significant impact on the performance of OBS.
Li, VOK, Wai, PKA, Li, G, Li, CY
openaire   +4 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Bi-Directional Benes With Large Port-Counts and Low Waveguide Crossings for Optical Network-on-Chip

open access: yesIEEE Access, 2021
We propose a new variant of the Benes network using a merge-replace-fold approach. It is to realize a large port-count optical switch with low waveguide crossings. A bidirectional switch is built instead of a unidirectional switch.
Li Zhao, Peng Shi, Huiyan Zhang
doaj   +1 more source

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