Spatio-temporal beam dynamics in multimode nonlinear optical fibers
Authors: Krupa K., Modotto D., Couderc V., Barthelemy A., Tonello A., Millot G., Wabnitz S.
Autors Affiliation: Dipartimento di Ingegneria dell\’Informazione, Università di Brescia, via Branze 3825123, Italy; Université de Limoges, XLIM, UMR CNRS 7252, 123 Avenue A. Thomas, Limoges, 87060, France; Université Bourgogne Franche-Comté, ICB UMR CNRS 6303, 9 Avenue A. Savary, Dijon, 21078, France; Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russian Federation
Abstract: 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 generation spanning multiple octaves. Effectively single mode supercontinuum spanning from the visible to the mid-infrared was also demonstrated. Enhancement of Kerr beam self-cleaning was observed in active fiber with quasi-step index profile. Moreover, mutual self-cleaning was recently reported for both the fundamental and the second harmonic beams in optically poled multimode fibers with cubic and quadratic nonlinearity.
More Information: Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR. Ministry of Education and Science of the Russian Federation, Minobrnauka, 14. Ministry of Education and Science of the Russian Federation, Minobrnauka, Y26.31.0017. Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, PRIN 2015KEZNYM. – We gratefully acknowledge support from the iXcore Research Foundation, ANR Labex Action, Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) (PRIN 2015KEZNYM); Ministry of Education and Science of the Russian Federation (14.Y26.31.0017); Horiba Medical and BPI France (dat@diag project). – et al.; FYLA; IEEE; IEEE Photonics Society; Light Tec; OptoSigmaKeyWords: Cleaning; Fiber amplifiers; Fiber optic networks; Fibers; Harmonic generation; Light amplifiers; Light propagation; Nonlinear optics; Optical fibers; Optical Kerr effect; Transparent optical networks, Beam dynamics; Multimode optical fibers; Non-linear optical fibers; Quadratic nonlinearities; Second harmonics; Spatio temporal; Step-index profile; Super continuum, Multimode fibersDOI: 10.1109/ICTON.2017.8024756