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

Y. Leventoux, G. Granger, K. Krupa, A. Tonello, G. Millot, M. Ferraro, F. Mangini, M. Zitelli, S. Wabnitz, S. Février, V. Couderc

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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, to the best of our knowledge, the first unambiguous experimental observation of instantaneous intrapulse nonlinear coupling processes among the modes of a graded index fiber.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalOptics Letters
Volume46
Issue number1
DOIs
Publication statusPublished - 1 Jan 2021

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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