Dynamics of elliptical beams in the anomalous group-velocity dispersion regime | Zendy

Bonggu Shim | Zendy; Samuel E. Schrauth | Zendy; Luat T. Vuong | Zendy; Yoshitomo Okawachi | Zendy; Alexander L. Gaeta | Zendy

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Dynamics of elliptical beams in the anomalous group-velocity dispersion regime

Author(s) -

Bonggu Shim,

Samuel E. Schrauth,

Luat T. Vuong,

Yoshitomo Okawachi,

Alexander L. Gaeta

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.009139

Subject(s) - filamentation , physics , optics , group velocity , self phase modulation , pulse compression , dispersion (optics) , pulse (music) , nonlinear optics , laser , telecommunications , radar , detector , computer science

We investigate 3D spatio-temporal focusing of elliptically-shaped beams in a bulk medium with Kerr nonlinearity and anomalous group-velocity dispersion (GVD). Strong space-time localization of the mode is observed through multi-filamentation with temporal compression by a factor of 3. This behavior is in contrast to the near-zero GVD regime in which minimal pulse temporal compression is observed. Our theoretical simulations qualitatively reproduce the experimental results showing the highly localized spatio-temporal profile in the anomalous-GVD regime, which contrasts to the weakly localized pulse in the normal-GVD regime.

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