Results 21 to 30 of about 28,722 (257)

Four-Wave Mixing of a Laser and Its Frequency-Doubled Version in a Multimode Optical Fiber

open access: yesPhotonics, 2015
It is shown that it is possible to couple a laser beam and its frequency-doubled daughter into a multimode optical fiber through the four-wave mixing nonlinear process and generate a new wavelength.
Hamed Pourbeyram, Arash Mafi
doaj   +1 more source

Frequency scanned phase sensitive optical time-domain reflectometry interrogation in multimode optical fibers

open access: yesAPL Photonics, 2020
Standard multimode optical fibers normally support transmission over some 100 modes. Large differences in the propagation constant and the spatial distribution of distinct modes degrade the performance of phase-sensitive optical time-domain reflectometry
K. Markiewicz   +8 more
doaj   +1 more source

Soliton propagation in multimode optical fibers [PDF]

open access: yesOptics Letters, 1981
Soliton propagation in a multimode optical fiber in the presence of an intensity-dependent refractive index is investigated by means of a set of nonlinear coupled equations derived in the frame of coupled-mode theory. In particular, the conditions on modal amplitudes and modal dispersion necessary for soliton existence are derived.
Crosignani, Bruno, Di Porto, Paolo
openaire   +3 more sources

Low-cost multimode waveguide couplers for multimode fiber-based local area networks [PDF]

open access: yes, 2000
Novel, ultra-compact multimode fiber-matched integrated optical 1×2, 1×3 and 2×2 couplers with low excess losses and large tolerances have been designed and simulated using a fully three-dimensional beam propagation ...
Driessen, A.   +3 more
core   +2 more sources

Infrared Fiber $N \times 1$ Multimode Combiner

open access: yesIEEE Photonics Journal, 2013
Fiber-based multimode combiners allow for wavelength and power scaling of laser sources while maintaining a common emission aperture and divergence. For applications in the mid-infrared spectral band, chalcogenide glass optical fibers are one of the few ...
Rafael R. Gattass   +8 more
doaj   +1 more source

High bandwidth performance of multimode graded-index microstructured polymer optical fibers

open access: yesResults in Physics, 2023
The investigation of the bandwidth in multimode graded-index microstructured polymer optical fiber (GI mPOF) with a solid core is proposed using a modal diffusion approach.
Svetislav Savović   +9 more
doaj   +1 more source

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

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

Multimodal plasmonic optical fiber grating aptasensor

open access: yesOptics Express, 2020
Tilted fiber Bragg gratings (TFBGs) are now a well-established technology in the scientific literature, bringing numerous advantages, especially for biodetection. Significant sensitivity improvements are achieved by exciting plasmon waves on their metal-coated surface.
Maxime Lobry   +7 more
openaire   +3 more sources

Novel Method for Improving the Capacity of Optical MIMO System Using MGDM [PDF]

open access: yes, 2014
In current local area networks, multimode fibers (MMFs), primarily graded index (GI) MMFs, are the main types of fibers employed for data communications.
Aggoun, A.   +4 more
core   +6 more sources

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