Dispersion effects on grating-assisted output couplers under ultrafast pulse excitations

Tao Liang, Richard W. Ziolkowski

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The effects of dispersion on the performance of finite-length grating-assisted output couplers driven by ultrafast pulses are studied. Two different FDTD formulations of Lorentz dispersion are treated, and both dispersive waveguides and grating teeth are considered. The impact of dispersion on the output beams is quantified.

Original languageEnglish (US)
Pages (from-to)17-23
Number of pages7
JournalMicrowave and Optical Technology Letters
Issue number1
StatePublished - 1998


  • Dielectric waveguide
  • Dispersion
  • FDTD modeling
  • Grating-assisted coupler
  • Ultrafast optical pulses

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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