3D time-domain beam mapping for studying nonlinear dynamics in multimode optical fibers

Autor:	Leventoux, Y., Granger, G., Krupa, K., Tonello, A., Millot, G., Ferraro, M., Mangini, F., Zitelli, M., Wabnitz, S., Février, S., Couderc, V.
Rok vydání:	2020
Předmět:	Physics - Optics
Druh dokumentu:	Working Paper
Popis:	The characterization of the complex spatiotemporal dynamics of optical beam propagation in nonlinear multimode fibers requires the development of advanced measurement methods, capable of capturing the real-time evolution of beam images. We present a new space-time mapping technique, permitting the direct detection, with picosecond temporal resolution, of the intensity from repetitive laser pulses over a grid of spatial samples from a magnified image of the output beam. By using this time-resolved mapping, we provide the first unambiguous experimental observation of instantaneous intrapulse nonlinear coupling processes among the modes of a graded index fiber. Comment: 4 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2010.02159 Zobrazit plný text záznamu View this record from Arxiv