An improved nonlinear optical pulse propagation equation

M. Trippenbach, W. Wasilewski, P. Kruk, G. W. Bryant, G. Fibich, Y. B. Band

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


A new equation for self-focusing of extremely focused short-duration intense pulses is derived using a method that treats diffraction and dispersion to all orders with nonlinearity present, and self-consistently determines the nonlinear derivative terms present in the propagation equation. It generalizes both the previous formulation of linear optical pulse propagation to the nonlinear regime, and the cw nonlinear regime propagation to the pulsed regime by including temporal characteristics of the pulse. We apply the new equation and propagate a tightly focused picosecond pulse in silica and explicitly show the effects of spatial-derivative nonlinear coupling terms.

Original languageEnglish
Pages (from-to)385-391
Number of pages7
JournalOptics Communications
Issue number3-6
StatePublished - 15 Sep 2002


  • Nonparaxial
  • Pulse propagation
  • Self-focusing
  • Ultrafast

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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