Scientific Results

Intermodal modulational instability in graded-index multimode optical fibers

Year: 2017

Authors: Dupiol R., Bendahmane A., Krupa K., Fatome J., Tonello A., Fabert M., Couderc V., Wabnitz S., Millot G.

Autors Affiliation: Université Bourgogne Franche-Comté, ICB UMR CNRS 6303, 9 Avenue A. Savary, Dijon, 21078, France; Université de Limoges, XLIM, UMR CNRS 7252, 123 Avenue A. Thomas, Limoges, 87060, France; Università di Brescia, Dipartimento di Ingegneria dell’Informazione, INO-CNR, via Branze 38, Brescia, 25123, Italy; Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russian Federation

Abstract: We report on the experimental observation of an intermodal noise-seeded modulational instability process (MI) taking place in the normal dispersion regime of a few-mode graded-index optical fiber. Strong power dependence of the MI spectra is observed, with a peak gain modulation frequency that scales as the square root of the injected light power. These observations are in excellent agreement with the predictions of a bimodal-MI model.

Journal/Review: OPTICS LETTERS

Volume: 42 (17)      Pages from: 3419  to: 3422

More Information: Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR. Ministry of Education and Science of the Russian Federation, Minobrnauka. Agence Nationale de la Recherche, ANR. Labex. Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, PRIN 2015KEZNYM. – Funding. iXcore Research Foundation; Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) (PRIN 2015KEZNYM); Agence Nationale de la Recherche (ANR) (Labex Action); Ministry of Education and Science of the Russian Federation (Minobrnauka) (14.Y26.31.0017); Horiba Medical; BPI France (Dat@diag).
KeyWords: Modulation; Optical fibers; Optical signal processing, Graded index; Graded-index optical fibers; Light power; Modulational instability; Multimode optical fibers; Normal dispersion; Power dependence; Square roots, Multimode fibers
DOI: 10.1364/OL.42.003419

Citations: 25
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