Results 91 to 100 of about 4,637,954 (349)

Space-division multiplexing for fiber-wireless communications

open access: yes, 2018
We envision the application of optical Space-division Multiplexing (SDM) to the next generation fiber-wireless communications as a firm candidate to increase the end user capacity and provide adaptive radiofrequency-photonic interfaces.
Barrera, David   +4 more
core   +1 more source

Optical fiber sensors for coal mine shaft integrity and equipment condition monitoring [PDF]

open access: yes, 2019
Shaft is an important structure of mine. Deep mining increases mine pressure, induces shaft deformation and affects mine normal lifting. How to improve the inspection efficiency, reduce the maintenance cost and ensure the normal operation of the shaft is
Fu, J.   +9 more
core   +1 more source

Rayleigh Fading Suppression in One-Dimensional Optical Scatters

open access: yesIEEE Access, 2019
A highly coherent wave is favorable for applications in which phase retrieval is necessary, yet a high-coherence wave is prone to encounter Rayleigh fading phenomenon as it passes through a medium of random scatters.
Shengtao Lin   +8 more
doaj   +1 more source

Fiber-Optic Microstructure Sensors: A Review

open access: yesPhotonic Sensors, 2021
This paper reviews a wide variety of fiber-optic microstructure (FOM) sensors, such as fiber Bragg grating (FBG) sensors, long-period fiber grating (LPFG) sensors, Fabry-Perot interferometer (FPI) sensors, Mach-Zehnder interferometer (MZI) sensors ...
Zengling Ran   +8 more
doaj   +1 more source

Multimode optical fiber transmission with a deep learning network [PDF]

open access: yesLight: Science & Applications, 2018
Multimode fibers (MMFs) are an example of a highly scattering medium, which scramble the coherent light propagating within them to produce seemingly random patterns.
Babak Rahmani   +4 more
semanticscholar   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Optimal non-circular fiber geometries for image scrambling in high-resolution spectrographs

open access: yes, 2016
Optical fibers are a key component for high-resolution spectrographs to attain high precision in radial velocity measurements. We present a custom fiber with a novel core geometry - a 'D'-shape.
Bean, Jacob L.   +8 more
core   +1 more source

Fiber Optic Calorimetry [PDF]

open access: yes, 1997
A twin-bridge calorimeter using optical fiber as the sensor element was constructed and tested. This system demonstrates the principle and capability of using optical fibers for heat-flow measurements of special nuclear material. This calorimeter uses piezoelectric-generated phase-carrier modulation with subsequent electronic signal processes to allow ...
Rudy, C.   +4 more
openaire   +4 more sources

Depth-resolved fiber photometry with a single tapered optical fiber implant

open access: yesNature Methods, 2019
Fiber photometry is increasingly utilized to monitor fluorescent sensors of neural activity in the brain. However, most implementations are based on flat-cleaved optical fibers that can only interface with shallow tissue volumes adjacent to the fiber. We
F. Pisano   +12 more
semanticscholar   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

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