Abstract

Kerr beam cleaning in graded-index multimode fiber has been investigated in experiments with sub-nanosecond pulses and in experiments with femtosecond pulses at wavelengths where the dispersion is normal. We report a theoretical and experimental study of this effect with femtosecond pulses and anomalous dispersion. In this regime, only weak beam cleaning is observed experimentally, along with strong temporal evolution of the pulse. Numerical simulations exhibit the qualitative trends of the experiments.

© 2021 Optical Society of America

Kerr self-cleaning of femtosecond-pulsed beams in graded-index multimode fiber

Zhanwei Liu, Logan G. Wright, Demetrios N. Christodoulides, and Frank W. Wise
Opt. Lett. 41(16) 3675-3678 (2016)

Nonlinear polarization dynamics of Kerr beam self-cleaning in a graded-index multimode optical fiber

Katarzyna Krupa, Graciela Garmendia Castañeda, Alessandro Tonello, Alioune Niang, Denis S. Kharenko, Marc Fabert, Vincent Couderc, Guy Millot, Umberto Minoni, Daniele Modotto, and Stefan Wabnitz
Opt. Lett. 44(1) 171-174 (2019)

High-temperature wave thermalization spoils beam self-cleaning in nonlinear multimode GRIN fibers

Fabio Mangini, Mario Ferraro, Alessandro Tonello, Vincent Couderc, and Stefan Wabnitz
Opt. Lett. 48(18) 4741-4744 (2023)

Gain-induced Kerr beam cleaning in a femtosecond fiber amplifier

Henry Haig, Nicholas Bender, Yi-Hao Chen, Anirban Dhar, Nilotpal Choudhury, Ranjan Sen, Demetrios N. Christodoulides, and Frank Wise
J. Opt. Soc. Am. B 40(6) 1510-1517 (2023)

Interplay of Kerr and Raman beam cleaning with a multimode microstructure fiber

R. Dupiol, K. Krupa, A. Tonello, M. Fabert, D. Modotto, S. Wabnitz, G. Millot, and V. Couderc
Opt. Lett. 43(3) 587-590 (2018)