Results 11 to 20 of about 26,995 (244)
Spatial Beam Cleaning in Multimode GRIN Fibers: Polarization Effects
IEEE Photonics Journal, 2023 The beam self-cleaning effect in graded-index multimode optical fibers has several interesting potential applications, such as high-resolution nonlinear imaging and mode-locked fiber lasers. Most experimental and theoretical studies of beam self-cleaning
Mario Ferraro +9 more
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Highly multimode solitons in step-index optical fiber
APL Photonics, 2023 We report the generation of multimode solitons in step-index fibers. The solitons are superpositions of 5–10 temporally aligned transverse modes, they exhibit speckled beam profiles, and the spatio-spectral variation across the soliton can be complex.
Yuhang Wu +3 more
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Photonics, 2022 We studied the effect of mode coupling on the space division multiplexing (SDM) capabilities of multimode step-index (SI) air-clad silica optical fibers by numerically solving the power flow equation.
Svetislav Savović +5 more
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Nonlinear Multimode Fiber Optics [PDF]
Conference on Lasers and Electro-Optics, 2018 We overview recent advances in the nonlinear optics of multimode optical fibers, including ultrabroadband sideband and supercontinuum generation, Kerr and Raman beam cleanup, modal modulation instabilities, four wave mixing, and second harmonic beam cleaning.
Wabnitz, S. +6 more
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Thermalization of light waves in multimode optical fibers: Negative temperatures equilibrium states and the role of disorder - INVITED [PDF]
EPJ Web of Conferences, 2023 Nonlinear random waves exhibit a phenomenon of irreversible thermalization, in analogy with the thermalization of a classical gas system. This irreversible process of thermalization to the Rayleigh-Jeans equilibrium distribution has been recently ...
Baudin Kilian +9 more
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Spectral shaping in a multimode fiber by all-fiber modulation
APL Photonics, 2023 In the past few years, there is a renewed interest in using multimode fibers for a wide range of technologies such as communication, imaging, and spectroscopy.
Zohar Finkelstein +3 more
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Broadband multimode fiber spectrometer [PDF]
Optics Letters, 2016 A general-purpose all-fiber spectrometer is demonstrated to overcome the trade-off between spectral resolution and bandwidth. By integrating a wavelength division multiplexer with five multimode optical fibers, we have achieved 100 nm bandwidth with 0.03 nm resolution at wavelength 1500 nm.
Liew, Seng Fatt +4 more
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APL 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
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Modal dynamics in multimode fibers [PDF]
Journal of the Optical Society of America A, 2011 The dynamics of modes and their states of polarizations in multimode fibers as a function of time, space, and wavelength are experimentally and theoretically investigated. The results reveal that the states of polarizations are displaced in Poincare sphere representation when varying the angular orientations of the polarization at the incident light ...
Fridman, Moti +4 more
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Multimode Graded Index Fiber with Random Array of Bragg Gratings and Its Raman Lasing Properties
Fibers, 2023 Light propagation in multimode fibers is known to experience various nonlinear effects, which are being actively studied. One of the interesting effects is the brightness enhancement at the Raman conversion of the multimode beam in graded index (GRIN ...
Alexey G. Kuznetsov +4 more
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