Nonlinear dynamics in multimode optical fibers

Stefan Wabnitz; Alessandro Tonello; Vincent Couderc; Daniele Modotto; Alain Barthélémy; Guy Millot; Katarzyna Krupa

doi:10.1117/12.2287874

26 January 2018 Nonlinear dynamics in multimode optical fibers

Stefan Wabnitz, Alessandro Tonello, Vincent Couderc, Daniele Modotto, Alain Barthélémy, Guy Millot, Katarzyna Krupa

Proceedings Volume 10540, Quantum Sensing and Nano Electronics and Photonics XV; 105402B (2018) https://doi.org/10.1117/12.2287874
Event: SPIE OPTO, 2018, San Francisco, California, United States

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.

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Citation Download Citation

Stefan Wabnitz, Alessandro Tonello, Vincent Couderc, Daniele Modotto, Alain Barthélémy, Guy Millot, and Katarzyna Krupa "Nonlinear dynamics in multimode optical fibers", Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105402B (26 January 2018); https://doi.org/10.1117/12.2287874

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