Pulse splitting in the anomalous group-velocity-dispersion regime.

نویسندگان

  • Samuel E Schrauth
  • Bonggu Shim
  • Aaron D Slepkov
  • Luat T Vuong
  • Alexander L Gaeta
  • Nir Gavish
  • Gadi Fibich
چکیده

We investigate experimentally the role that the initial temporal profile of ultrashort laser pulses has on the self-focusing dynamics in the anomalous group-velocity dispersion (GVD) regime. We observe that pulse-splitting occurs for super-Gaussian pulses, but not for Gaussian pulses. The splitting does not occur for either pulse shape when the GVD is near-zero. These observations agree with predictions based on the nonlinear Schrödinger equation, and can be understood intuitively using the method of nonlinear geometrical optics.

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عنوان ژورنال:
  • Optics express

دوره 19 10  شماره 

صفحات  -

تاریخ انتشار 2011