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Modeling comparison of second-harmonic generation in high-index-contrast devices

Research output: Contribution to journalJournal article

  • Björn Maes
  • P Bienstman
  • Roel Baets
  • B Hu
  • P Sewell
  • T Benson
<mark>Journal publication date</mark>2008
<mark>Journal</mark>Optical and Quantum Electronics
Issue number1
Number of pages10
Pages (from-to)13-22
<mark>Original language</mark>English


In this paper we model second-harmonic generation in a microphotonic structure using two different numerical methods. The proposed two-dimensional waveguide device is challenging as it incorporates a high-contrast grating, which instigates strong local enhancement but also radiation losses. The first simulation method extends the time-domain beam propagation method, whereas the second one builds upon frequency-domain eigenmode expansion. Good agreement between both tools is obtained for both the linear and nonlinear simulations.