0000000000771689

AUTHOR

Oleg Sidelnikov

showing 2 related works from this author

Highly efficient few-mode spatial beam self-cleaning at 15µm

2020

We experimentally demonstrate that spatial beam self-cleaning can be highly efficient when obtained with a few-mode excitation in graded-index multimode optical fibers. By using 160 ps long, highly chirped (6 nm bandwidth at -3dB) optical pulses at 1562 nm, we demonstrate a one-decade reduction of the power threshold for spatial beam self-cleaning, with respect to previous experiments using pulses with laser wavelengths at 1030-1064 nm. Self-cleaned beams remain spatio-temporally stable for more than a decade of their peak power variation. The impact of input pulse temporal duration is also studied.

Optical fiberMaterials sciencePhysics::Optics02 engineering and technology01 natural sciencesmultimode fiberslaw.invention010309 opticsOpticsKerr effectlawSelf cleaning0103 physical sciencesComputingMilieux_MISCELLANEOUS[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]nonlinear optics; multimode fibers; Kerr effectMulti-mode optical fiberbusiness.industrynonlinear opticsBandwidth (signal processing)021001 nanoscience & nanotechnologyLaserAtomic and Molecular Physics and OpticsWavelength0210 nano-technologybusinessExcitationBeam (structure)
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Spatial Beam Evolution in Nonlinear Multimode Fibers

2021

We discuss some recent results illustrating the role of input wave-front shaping, propagation dynamics and output beam diagnostics in order to observe spatial beam cleaning in nonlinear multimode fibers and amplifiers.

Physicsoptical fibers; nonlinear optics; optical solitons; Kerr effect; four wave mixingoptical fibersMulti-mode optical fiberbusiness.industryAmplifiernonlinear optics02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesmultimode fibers010309 opticsNonlinear systemfour wave mixingOpticsOptical fiber amplifiersoptical solitonsKerr effectFiber laser0103 physical sciencesPhysics::Accelerator Physics0210 nano-technologybusinessLaser beamsBeam (structure)Conference on Lasers and Electro-Optics
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