Topology optimization and fabrication of photonic crystal structures

Peter Ingo Borel, Anders Harpøth, Lars Hagedorn Frandsen, Martin Kristensen, Peixiong Shi, Jakob Søndergaard Jensen, Ole Sigmund

Research output: Contribution to journalJournal articleResearchpeer-review


Topology optimization is used to design a planar photonic crystal waveguide component resulting in significantly enhanced functionality. Exceptional transmission through a photonic crystal waveguide Z-bend is obtained using this inverse design strategy. The design has been realized in a silicon-on-insulator based photonic crystal waveguide. A large low loss bandwidth of more than 200 nm for the TE polarization is experimentally confirmed.
Original languageEnglish
JournalOptics Express
Issue number9
Pages (from-to)1996-2001
Publication statusPublished - 2004


  • Optical waveguides
  • Energy gap
  • Photons
  • Crystal structure
  • Light polarization
  • Optimization
  • Silicon on insulator technology


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