Results 11 to 20 of about 21,309 (210)

Overview of Fibre Optic Sensing Technology in the Field of Physical Ocean Observation

open access: yesFrontiers in Physics, 2021
Fiber optic sensors are expected to be an auxiliary measurement tool in the field of ocean observation due to their small size, easy networking, intrinsic immunity to electromagnetic interference, and many other advantages.
Li Wang   +6 more
doaj   +1 more source

Research on inter-core crosstalk characteristics of real multi-core fibers with multi-core excitation

open access: yesTongxin xuebao, 2022
Based on the coupled power theory, the characteristics of optical power and inter-core crosstalk (ICXT) were studied in real multi-core fibers (MCF) with multi-core excitation.According to the simplified coupled power equation of 7-core fiber, the ...
Lian XIANG   +3 more
doaj   +2 more sources

Multiparameter sensor based on micro/nano-structured optical fiber and composites

open access: yesHeliyon, 2022
In this paper, an optical fiber sensor is realized with multi-parameter measurement, including magnetic field, temperature and displacement. Then, the implementation of the three-parameter independent measurement was performed.
Chi Liu   +5 more
doaj   +1 more source

Tm3+/Ho3+ profiled co-doped core area optical fiber for emission in the range of 1.6–2.1 µm

open access: yesScientific Reports, 2023
Double-clad optical fiber with a multi-ring core profile doped with thulium and holmium fabricated by Modified Chemical Vapor Deposition Chelate Doping Technology (MCVD-CDT) is presented. The measured Tm2O3 and Ho2O3 complexes’ weight concentrations were
Piotr Miluski   +12 more
doaj   +1 more source

Contactless vital signs monitoring based on few-mode and multi-core fibers

open access: yesOpto-Electronic Advances, 2020
Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation.
Tan Fengze   +4 more
doaj   +1 more source

Numerical Simulation of the Self-Imaging at Different Cascaded Optical Fiber Specifications [PDF]

open access: yesEngineering and Technology Journal, 2022
Cascaded optical fiber single mode-no core-single mode fiber (SNS) attracted attention for being the base of various photonic devices. These devices are used in optical communication, fiber sensors, and fiber laser technology.
Shahad Younus   +2 more
doaj   +1 more source

Multi-channel fiber-optic temperature sensor system using an optical time-domain reflectometer

open access: yesResults in Physics, 2018
In this study, we developed a multi-channel fiber-optic temperature sensor system (FTSS) using an optical time-domain reflectometer (OTDR). The developed FTSS consists of fiber-optic temperature-sensing probes, a fiber-optic coupler, a transmitting ...
H.J. Kim   +6 more
doaj   +1 more source

Research Progress in Tunable Fiber Lasers Based on Multimode Interference Filters

open access: yesMicromachines, 2023
Tunable fiber lasers have the advantages of good beam quality, high integration, and adjustable output wavelength, and they are widely used in fields such as optical fiber communication and optical fiber sensing.
Liqiang Zhang   +5 more
doaj   +1 more source

Optical Field Transmission Analysis of an All-Fiber Signal Combiner With a Dumbbell Shape

open access: yesIEEE Photonics Journal, 2022
In this paper, the optical field transmission characteristics of an all-fiber signal combiner with a dumbbell shape and its application in laser beam combining are analyzed theoretically. Based on the three-layer waveguide model, the mode characteristics
Xuanfeng Zhou
doaj   +1 more source

Real-time holographic lensless micro-endoscopy through flexible fibers via fiber bundle distal holography

open access: yesNature Communications, 2022
Fiber-based micro-endoscopes are minimally invasive, but 3D imaging is limited by the need for bulky optical elements or rigid fibers. Here, the authors demonstrate holographic imaging through flexible and dynamically bent multi-core fibers by adding ...
Noam Badt, Ori Katz
doaj   +1 more source

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