Scientific Results

Spatiotemporal light-beam compression from nonlinear mode coupling

Year: 2018

Authors: Krupa Katarzyna; Tonello Alessandro; Couderc Vincent; Barthelemy Alain; Millot Guy; Modotto Daniele; Wabnitz Stefan

Autors Affiliation: Dipartimento di Ingegneria dell’Informazione, Università di Brescia, via Branze 38, 25123, Brescia, Italy; Université de Limoges, XLIM, UMR CNRS 7252, 123 Av. A. Thomas, 87060 Limoges, France: Université de Bourgogne, ICB, UMR CNRS 6303, 9 Av. A. Savary, 21078 Dijon, France; Istituto Nazionale di Ottica del Consiglio Nazionale delle Ricerche (INO-CNR), Via Branze 45, 25123 Brescia, Italy

Abstract: We experimentally demonstrate simultaneous spatial and temporal compression in the propagation of light pulses in multimode nonlinear optical fibers. We reveal that the spatial beam self-cleaning recently discovered in graded-index multimode fibers is accompanied by significant temporal reshaping and up to fourfold shortening of the injected subnanosecond laser pulses. Since the nonlinear coupling among the modes strongly depends on the instantaneous power, we explore the entire range of the nonlinear dynamics with a single optical pulse, where the optical power is continuously varied across the pulse profile.

Journal/Review: PHYSICAL REVIEW A

Volume: 97 (4)      Pages from: 043836-1  to: 043836-6

More Information: We acknowledge the financial support of the following: Horiba Medical and BPI France within the Dat@diag project; iXcore research foundation; French National Research Agency ANR Labex ACTION; French program “Investissement d
KeyWords: Laser pulses; Multimode fibers; Nonlinear optics; Optical fibers, Graded-Index Multimode fibers; Instantaneous power; Non-linear optical fibers; Nonlinear coupling; Nonlinear mode coupling; Propagation of lights; Single optical pulse; Temporal compressions; Light propagation
DOI: 10.1103/PhysRevA.97.043836

Citations: 24
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-24
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