Core-confined beam propagation method for guiding and leaky structures

Jonathan Andreasen, Miroslav Kolesik

Research output: Contribution to journalArticlepeer-review


We propose a beam propagation method variant, which only requires the computational grid to span the core region of a waveguiding structure. Optical fields outside are accounted for through semitransparent boundary conditions. The method is fast, simple to implement, and accurate over a wide range of wavelengths. It is applicable to both guiding and leaky structures, with sufficiently strong contrast between refractive indices in the core, substrate, and cladding.

Original languageEnglish (US)
Article number6578083
Pages (from-to)2999-3005
Number of pages7
JournalJournal of Lightwave Technology
Issue number18
StatePublished - 2013


  • Beam propagation
  • computer simulation
  • finite difference methods
  • optical propagation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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