Results 21 to 30 of about 34,306 (240)

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

Multimode optical fiber strain monitoring for smart infrastructures

open access: yesAin Shams Engineering Journal, 2023
The in-service monitoring of civil infrastructures is an important task required to achieve their smart operation. This task requires the installation of sensors to continuously check and control the structures’ status in order to fulfil the demanded ...
Ahmed Hisham E. Morshed, Raghied M. Atta
doaj   +1 more source

Duplexing methods for PON systems using multimode fiber with multicarrier transmission [PDF]

open access: yes, 2005
Deploying a PON using multimode fiber in the access network is viewed as a costeffective solution. However, a multimode fiber link exhibits a time-dispersive nature. To cope with this problem, an OFDM transmission method is used.
Bochove, A.C. van, Taniman, R.O.
core   +12 more sources

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

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

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

Beam self-cleaning in multimode optical fibers and hydrodynamic 2D turbulence [PDF]

open access: yes, 2019
We experimentally demonstrate the conservation of the average mode number in the process of Kerr beam self-cleaning in a graded-index multimode optical fiber, in analogy with wave condensation in hydrodynamic 2D ...
Babin, S. A.   +9 more
core   +1 more source

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

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