FDTD computational study of ultra-narrow TM non-paraxial spatial soliton interactions

Zachary Lubin*, Jethro H. Greene, Allen Taflove

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We consider the interaction between two (1+1)D ultra-narrow optical spatial solitons in a nonlinear dispersive medium using the finite-difference time-domain (FDTD) method for the transverse magnetic (TM) polarization. The model uses the general vector auxiliary differential equation (GVADE) approach to include multiple electric-field components, a Kerr nonlinearity, and multiple-pole Lorentz and Raman dispersive terms. This study is believed to be the first considering narrow soliton interaction dynamics for the TM case using the GVADE FDTD method, and our findings demonstrate the utility of GVADE simulation in the design of soliton-based optical switches.

Original languageEnglish (US)
Article number5740376
Pages (from-to)228-230
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number5
StatePublished - May 2011


  • FDTD
  • Finite-difference time-domain method
  • nonlinear optics
  • spatial solitons

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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