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Chaos Raman distributed optical fiber sensing. [PDF]

open access: yesLight Sci Appl, 2023
Wang C   +6 more
europepmc   +2 more sources

Seamless integration of distributed acoustic sensing and passive optical networks for human intrusion monitoring [PDF]

open access: yesCommunications Engineering
Passive optical networks (PONs) serve as the backbone of modern all-optical communication infrastructures, while fiber-optic distributed acoustic sensing (DAS) is being applied to various fields as a revolutionary technology.
Rong Tang   +11 more
doaj   +2 more sources

Multifunctional Optical Crystals for All-Solid-State Raman Lasers

open access: yesCrystals, 2021
In the past few decades, the multifunctional optical crystals for all-solid-state Raman lasers have been widely studied by many scholars due to their compactness, convenience and excellent performance.
Hui Zhao   +5 more
doaj   +1 more source

Deep Learning-Based Robust Visible Light Positioning for High-Speed Vehicles

open access: yesPhotonics, 2022
Robustness is a key factor for real-time positioning and navigation, especially for high-speed vehicles. While visible light positioning (VLP) based on LED illumination and image sensors is widely studied, most of the VLP systems still suffer from the ...
Danjie Li   +12 more
doaj   +1 more source

Graphene-Fiber Biochemical Sensors: Principles, Implementations, and Advances

open access: yesPhotonic Sensors, 2021
Single atomically thick graphene, with unique structural flexibility, surface sensitivity, and effective light-mater interaction, has shown exceptional advances in optoelectronics. It opens a door for diverse functionalized photonic devices, ranging from
Ning An   +8 more
doaj   +1 more source

Recent Advances in Phase-Sensitive Optical Time Domain Reflectometry (Ф-OTDR)

open access: yesPhotonic Sensors, 2021
Phase-sensitive optical time domain reflectometry (Ф-OTDR) is an effective way to detect vibrations and acoustic waves with high sensitivity, by interrogating coherent Rayleigh backscattering light in sensing fiber. In particular, fiber-optic distributed
Yunjiang Rao   +4 more
doaj   +1 more source

Energy Transfer and Cross-Relaxation Induced Efficient 2.78 μm Emission in Er3+/Tm3+: PbF2 mid-Infrared Laser Crystal

open access: yesCrystals, 2021
An efficient enhancement of 2.78 μm emission from the transition of Er3+: 4I11/2 → 4I13/2 by Tm3+ introduction in the Er/Tm: PbF2 crystal was grown by the Bridgman technique for the first time. The spectroscopic properties, energy transfer mechanism, and
Jiayu Liao   +10 more
doaj   +1 more source

Tilted fiber Bragg gratings in multicore optical fibers for optical sensing [PDF]

open access: yesOptics Letters, 2017
We have inscribed a tilted fiber Bragg grating (TFBG) in selected cores of a multicore optical fiber. The presence of the TFBG permits to couple light from the incident-guided mode to the cladding modes and to the neighbor cores, and this interaction can be used for optical sensing.
Barrera Vilar, David|||0000-0002-1700-6842   +2 more
openaire   +4 more sources

Tera-sample-per-second arbitrary waveform generation in a synthetic dimension

open access: yesCommunications Physics, 2023
Synthetic dimension opens new horizons in quantum physics and topological photonics by enabling new dimensions for field and particle manipulations.
Yiran Guan   +8 more
doaj   +1 more source

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