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Proceedings Paper

Nonlinear dynamics in multimode optical fibers
Author(s): Stefan Wabnitz; Alessandro Tonello; Vincent Couderc; Daniele Modotto; Alain Barthélémy; Guy Millot; Katarzyna Krupa
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Paper Abstract

We overview recent advances in the research on spatiotemporal beam shaping in nonlinear multimode optical fibers. An intense light beam coupled to a graded index (GRIN) highly multimode fiber undergoes a series of complex nonlinear processes when its power grows larger. Among them, the lowest threshold effect is the Kerr-induced beam self-cleaning, that redistributes most of the beam energy into a robust bell-shaped beam close to the fundamental mode. At higher powers a series of spectral sidebands is generated, thanks to the phase matching induced by the long period grating due to the periodic self-imaging of the beam and the Kerr effect. Subsequently a broadband and spectrally flat supercontinuum is generated, extending from the visible to the mid-infrared.

Paper Details

Date Published: 26 January 2018
PDF: 7 pages
Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105402B (26 January 2018); doi: 10.1117/12.2287874
Show Author Affiliations
Stefan Wabnitz, Univ. degli Studi di Brescia (Italy)
INO-CNR (Italy)
Alessandro Tonello, XLIM, CNRS, Univ. de Limoges (France)
Vincent Couderc, XLIM, CNRS, Univ. de Limoges (France)
Daniele Modotto, Univ. degli Studi di Brescia (Italy)
Alain Barthélémy, XLIM, CNRS, Univ. de Limoges (France)
Guy Millot, ICB, CNRS, Univ. de Bourgogne (France)
Katarzyna Krupa, Univ. degli Studi di Brescia (Italy)

Published in SPIE Proceedings Vol. 10540:
Quantum Sensing and Nano Electronics and Photonics XV
Manijeh Razeghi; Gail J. Brown; Jay S. Lewis; Giuseppe Leo, Editor(s)

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