Results 31 to 40 of about 65,580 (195)

Evaluation of a multimode fiber optic low coherence interferometer for path length resolved Doppler measurements of diffuse light \ud [PDF]

open access: yes, 2007
The performance of a graded index multimode fiber optic low coherence Mach-Zehnder interferometer with phase modulation is analyzed. Investigated aspects were its ability to measure path length distributions and to perform path length resolved Doppler ...
Babu Varghese   +4 more
core   +6 more sources

Design of Silica Multimode Optical Fibers with Extremely Enlarged Core Diameter for Laser-Based Multi-Gigabit Short-Range Optical Networks

open access: yesPhotonics, 2018
This work presents an alternative fast and simple method for the design of a refractive index profile of silica multimode optical fibers (MMFs) with extremely enlarged core diameters of up to 100 µm for laser-based multi-gigabit short-range optical
Anton V. Bourdine   +5 more
doaj   +1 more source

Spatiotemporal Characterization of Supercontinuum Extending from the Visible to the Mid-Infrared in Multimode Graded-Index Optical Fiber [PDF]

open access: yes, 2016
We experimentally demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to spectrally flat supercontinuum generation with a uniform bell-shaped spatial beam profile extending from the visible to ...
Barthélémy, A.   +13 more
core   +4 more sources

Nonlinear beam self-imaging and self-focusing dynamics in a GRIN multimode optical fiber: theory and experiments

open access: yes, 2020
Beam self-imaging in nonlinear graded-index multimode optical fibers is of interest for many applications, such as implementing a fast saturable absorber mechanism in fiber lasers via multimode interference.
Couderc, Vincent   +9 more
core   +1 more source

Study of Optical Fiber Design Parameters in Fiber Optics Communications

open access: yesKurdistan Journal of Applied Research, 2017
Fiber optics is an important part in the telecommunication infrastructure. Large bandwidth and low attenuation are features for the fiber optics to provide gigabit transmission.
Salim Qadir Mohammed   +1 more
doaj   +1 more source

Splicing tolerances in graded-index fibers [PDF]

open access: yesApplied Physics Letters, 1976
Calculations are presented showing that, in general, a parabolic-index fiber is more sensitive to lateral misalignments within a splice than a step-index fiber. However, misalignments result in the excitation of leaky modes in graded-index fibers, and this can lead to optimistic joint loss measurements. Effective losses are given for various lengths of
Adams, M.J., Payne, D.N., Sladen, F.M.E.
openaire   +3 more sources

Graded-index optical fiber emulator of an interacting three-atom system: illumination control of particle statistics and classical non-separability [PDF]

open access: yes, 2019
We show that a system of three trapped ultracold and strongly interacting atoms in one-dimension can be emulated using an optical fiber with a graded-index profile and thin metallic slabs. While the wave-nature of single quantum particles leads to direct
Busch, Th.   +6 more
core   +3 more sources

High power high repetition rate supercontinuum generation in graded-index multimode fibers

open access: yes, 2017
Graded-index multimode fibers can handle high average powers and feature unique nonlinear dynamics due to spatio-temporal evolution of the light inside.
Ortaç, Bülend, Teğin, Uğur
core   +2 more sources

Enhanced flexural performances of cementitious composite beams with continuously graded steel fiber distribution

open access: yesMaterials & Design, 2023
This paper focuses on improving the flexural behavior of steel fiber-reinforced beams with continuously graded structure. Successive vibrating after casting is assumed to be a feasible way to produce graded fiber-reinforced beams (GFRBs), resulting in ...
Le Li   +7 more
doaj   +1 more source

Fast and accurate modelling of nonlinear pulse propagation in graded-index multimode fibers [PDF]

open access: yes, 2017
We develop a model for the description of nonlinear pulse propagation in multimode optical fibers with a parabolic refractive index profile. It consists in a 1+1D generalized nonlinear Schr\"odinger equation with a periodic nonlinear coefficient, which ...
Arabi, Carlos Mas   +3 more
core   +4 more sources

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