Three-dimensional spatiotemporal pulse-train solitons

Oren Lahav*, Ofer Kfir, Pavel Sidorenko, Maor Mutzafi, Avner Fleischer, Oren Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Experimental realization of three-dimensional spatiotemporal solitons, which were proposed several decades ago, is still considered a "grand challenge" in nonlinear science. Here, we present experimental observation of 3D optical spatiotemporal pulse-train solitons. A spatially bright temporally dark pulse-train beam is trapped in a bulk medium that supports two types of nonlinearities: slowly responding saturable self-focusing that collectively self-trap the beam in the transverse directions and fast self-phase modulation that self-localizes each dark notch temporally (longitudinally). This work opens the possibility for experimental investigations of various soliton phenomena, including soliton interaction in 3D, formation of multimode spatiotemporal solitons, and envisioning new entities like partially coherent spatiotemporal solitons.

Original languageEnglish
Article number041051
JournalPhysical Review X
Issue number4
StatePublished - 30 Nov 2017
Externally publishedYes


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