Results 31 to 40 of about 27,466 (242)

Refractive index profiling of multimode specialty optical fibers by absorption contrast X-ray computed microtomography [PDF]

open access: yesEPJ Web of Conferences, 2023
We report on successful refractive index profiling of commercially available step-index and in-house made graded-index multimode specialty optical fibers by means of X-ray computed microtomography.
Ferraro Mario   +12 more
doaj   +1 more source

Spatial beam self-cleaning and supercontinuum generation with Yb-doped multimode graded-index fiber taper based on accelerating self-imaging and dissipative landscape [PDF]

open access: yes, 2019
We experimentally demonstrate spatial beam self-cleaning and supercontinuum generation in a tapered Ytterbium-doped multimode optical fiber with parabolic core refractive index profile when 1064 nm pulsed beams propagate from wider (122 µm) into smaller (
Couderc, V.   +13 more
core   +1 more source

Nonlinear dynamics of spatio-temporal waves in multimode fibres [PDF]

open access: yes, 2017
Nonlinear multimode fibers provide an intriguing test-bed for exploring complex spatio-temporal beam dynamics. We overview recent experimental observations of Kerr beam self-cleaning, parametric sideband series and supercontinuum generation in passive ...
Barthelemy, Alain   +6 more
core   +1 more source

Self-cleaning on a higher order mode in ytterbium-doped multimode fiber with parabolic profile [PDF]

open access: yes, 2019
We experimentally demonstrate polarization-dependent Kerr spatial beam self-cleaning into the LP11 mode of an Ytterbium-doped multimode optical fiber with parabolic gain and refractive index ...
Addisu, M.   +8 more
core   +3 more sources

Control of coherent backscattering by breaking optical reciprocity [PDF]

open access: yes, 2015
Reciprocity is a universal principle that has a profound impact on many areas of physics. A fundamental phenomenon in condensed-matter physics, optical physics and acoustics, arising from reciprocity, is the constructive interference of quantum or ...
Bromberg, Y.   +3 more
core   +1 more source

Active wavefront shaping for controlling and improving multimode fiber sensor [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2019
Wavefront shaping (WFS) techniques have been used as a powerful tool to control light propagation in complex media, including multimode fibers. In this paper, we propose a new application of WFS for multimode fiber-based sensors.
Tianting Zhong   +5 more
doaj   +1 more source

Large core multimode fiber with high bandwidth and high connector tolerance for broadband short distance communications

open access: yesAPL Photonics, 2021
We propose a large core multimode fiber with 100-µm core diameter for short distance communication that is compatible with existing transceivers designed for 50-µm diameter core multimode fibers.
Kangmei Li   +5 more
doaj   +1 more source

Investigation of mode coupling in strained and unstrained multimode step-index POFs using the Langevin equation

open access: yesHeliyon, 2023
The Langevin equation (LE) is used to evaluate mode coupling in multimode step-index polymer optical fiber (SI POF) that is both unstrained and strained.
Svetislav Savović   +3 more
doaj   +1 more source

Coupling Effects Among Degenerate Modes in Multimode Optical Fibers

open access: yesIEEE Photonics Journal, 2014
Multimode optical fibers have recently received revived attention in the framework of space-division multiplexed systems, where the spatial diversity of fiber modes is exploited to increase transmission capacity.
L. Palmieri, A. Galtarossa
doaj   +1 more source

Ultra-Sensitive Strain and Temperature Sensing Based on Modal Interference in Perfluorinated Polymer Optical Fibers

open access: yesIEEE Photonics Journal, 2014
We implement the strain and temperature sensors based on multimode interference in perfluorinated (PF) graded-index (GI) plastic optical fibers, and investigate their sensing performance at 1300 nm.
Goki Numata   +4 more
doaj   +1 more source

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