Search results for "cladding"

showing 2 items of 62 documents

Single-mode Bragg gratings in tapered few-modes and multimode fibers

2019

We propose the implementation of fiber Bragg gratings in tapered few-mode and multimode fibers to accomplish single-mode operation by reducing the core diameter, while preserving the core-cladding structure. The gratings present a single reflection band, and the device shows low insertion losses after the taper fabrication and the fiber Bragg gratings inscription. The excitation of high-order odd modes in the core of the fiber has been identified as the main loss mechanism; it can be prevented by means of symmetric illumination of the fibers. We also demonstrate the excitation of high-order cladding modes (cladding-air modes) along the taper transitions; these modes can be removed without a…

multimode optical fibersMulti-mode optical fiberFabricationMaterials sciencebusiness.industrySingle-mode optical fiberUNESCO::FÍSICAPhysics::Optics02 engineering and technology021001 nanoscience & nanotechnologyCladding (fiber optics)01 natural sciencesAtomic and Molecular Physics and Optics010309 opticsOpticsFiber Bragg grating:FÍSICA [UNESCO]0103 physical sciencesInsertion lossFiber fabrication0210 nano-technologybusinessfiber Bragg gratingsExcitationfiber optics
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High Entropy Alloys for Energy Conversion and Storage: A Review of Grain Boundary Wetting Phenomena

2022

This research was funded by the Russian Ministry of Science and Higher Education (contract no. 075-15-2021-945 grant no. 13.2251.21.0013). Support from the University of the Basque Country (project GIU19/019) and from the Basque Government (project IT1714-22) is also acknowledged.

wettinggrain boundary:NATURAL SCIENCES::Physics [Research Subject Categories]coatingsphase diagramsplasma claddingphase transitionshigh-entropy alloys
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