Results 61 to 70 of about 65,580 (195)

Versatile Graded-Index Multi-Mode Fiber for High Capacity Single-and Multi-Mode Optical Home Network

open access: yes, 2014
International audienceA graded-index multi-mode fiber has been optimized to sustain a single excited mode when coupled with a standard single-mode fiber at 1310/1550nm while offering large effective modal bandwidth at 850nm under VCSEL excitations ...
Bramerie, Laurent   +14 more
core   +3 more sources

In-Fiber Collimator-Based Fabry-Perot Interferometer with Enhanced Vibration Sensitivity

open access: yesSensors, 2019
A simple vibration sensor is proposed and demonstrated based on an optical fiber Fabry-Perot interferometer (FPI) with an in-fiber collimator. The device was fabricated by splicing a quarter-pitch graded index fiber (GIF) with a section of a hollow-core ...
Bin Du   +7 more
doaj   +1 more source

A Weakly-Coupled Few-Mode Optical Fiber With a Graded Concave High-Index-Ring

open access: yesIEEE Photonics Journal, 2021
This paper proposes a novel refractive index profile design based on few-mode fibers (FMFs) which can support 4 linear polarization (LP) modes. We first present a FMF whose core is dually assisted by a nano-hole (NH) and a high-index-ring (HIR), and then
Jiwei Zhang   +7 more
doaj   +1 more source

Nonlinear polarization dynamics of Kerr beam self-cleaning in a GRIN multimode optical fiber

open access: yes, 2018
We experimentally study polarization dynamics of Kerr beam self-cleaning in a graded-index multimode optical fiber. We show that spatial beam cleaning is accompanied by nonlinear polarization rotation, and a substantial increase of the degree of linear ...
Castañeda, Graciela Garmendia   +10 more
core   +1 more source

Spatio-temporal beam dynamics in multimode nonlinear optical fibers [PDF]

open access: yes, 2017
We overview recent advances in the spatio-temporal nonlinear dynamics of optical pulses propagating in multimode optical fibers. The Kerr effect leads to spatial beam self-cleaning in a graded-index multimode optical fiber, followed by sideband series ...
Barthelemy, A.   +6 more
core   +1 more source

Modeling of Graded-Index Raman Fiber Amplifiers with Pump Depletion

open access: yesPhotonics
Graded-index (GRIN) fibers are often used for making high-power Raman amplifiers. We employ numerical and semi-analytical techniques to model such amplifiers and include not only the signal’s amplification and pump’s depletion but also various nonlinear ...
Sonali Maity   +3 more
doaj   +1 more source

A systematic analysis of parametric instabilities in nonlinear parabolic multimode fibers

open access: yesAPL Photonics, 2019
We provide a systematic analysis of geometric parametric instabilities in nonlinear graded-index multimode fibers. Our approach implicitly accounts for self-focusing effects and considers dispersion processes to all orders. It is shown that the resulting
H. E. Lopez-Aviles   +6 more
doaj   +1 more source

Analysis of graded-index optical fibers by the spectral parameter power series method

open access: yes, 2014
Spectral parameter power series (SPPS) method is a recently introduced technique for solving linear differential equations and related spectral problems.
Kravchenko, Vladislav V.   +2 more
core   +1 more source

Laser-Like Performance of Side-Pumped Dye-Doped Polymer Optical Fibers

open access: yesIEEE Photonics Journal, 2015
Mirrorless graded-index polymer optical fibers doped with the organic dye rhodamine 6G result in very compact broadband fiber lasers in the visible region when pumped from the side.
J. Arrue   +6 more
doaj   +1 more source

Artificial intelligence based prediction of refractive index profile of graded refractive index optical fiber

open access: yesICT Express
This research presents a deep neural network (DNN) approach for predicting the refractive index profile in graded-index multimode fibers (GRIN MMFs).
Seung-Yeol Lee, Hyuntai Kim
doaj   +1 more source

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