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

Research output: Contribution to journalJournal article

Published

  • Björn Maes
  • P Bienstman
  • Roel Baets
  • B Hu
  • P Sewell
  • T Benson
Journal publication date2008
JournalOptical and Quantum Electronics
Journal number1
Volume40
Number of pages10
Pages13-22
Original languageEnglish

Abstract

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.