Spatiotemporal control of ultrafast pulses in multimode optical fibers

Daniel Cruz-Delgado (), J. Enrique Antonio-Lopez, Armando Perez-Leija, Nicolas K. Fontaine, Stephen S. Eikenberry, Demetrios N. Christodoulides, Miguel A. Bandres and Rodrigo Amezcua-Correa ()
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Daniel Cruz-Delgado: the University of Central Florida
J. Enrique Antonio-Lopez: the University of Central Florida
Armando Perez-Leija: the University of Central Florida
Nicolas K. Fontaine: Nokia Bell Labs
Stephen S. Eikenberry: the University of Central Florida
Demetrios N. Christodoulides: University of Southern California
Miguel A. Bandres: the University of Central Florida
Rodrigo Amezcua-Correa: the University of Central Florida

Nature Communications, 2025, vol. 16, issue 1, 1-8

Abstract: Abstract Multimode optical fibers represent the ideal platform for transferring multidimensional light states. However, dispersion degrades the correlations between the light’s degrees of freedom, thus limiting the effective transport of ultrashort pulses between distant nodes of optical networks. Here, we demonstrate that tailoring the spatiotemporal structure of ultrashort light pulses can overcome the physical limitations imposed by both chromatic and modal dispersion in multimode optical fibers. We synthesize these light states with predefined spatial and chromatic dynamics through applying a sequence of transformations to shape the optical field in all its dimensions. Similar methods can also be used to overcome dispersion processes in other physical settings like acoustics and electron optics. Our results will enable advancements in laser-based technologies, including multimode optical communications, imaging, ultrafast light-matter interactions, and high brightness fiber sources.

Date: 2025
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DOI: 10.1038/s41467-025-60615-6

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