Substructuring approach to optimization of matching for photonic crystal waveguides

Ben Z. Steinberg*, Amir Boag, Orli Hershkoviz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A substructuring approach for numerical optimization of photonic crystal devices is proposed and demonstrated. Specifically, we consider the matching of coupled cavity waveguides (CCW's) - known also as coupled resonators optical waveguides (CROWs) - to free space. In this approach, one separates a priori between the invariant main structure that consists most of the PhC and the CCW, and the substructure that consists of a small portion of the CCW and evolves along the optimization course. Specific examples of matching configurations with insertion loss as low as few percent are presented.

Original languageEnglish
Pages (from-to)1866-1871
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number9
StatePublished - Sep 2006


  • Coupled cavity waveguide
  • Coupled resonator optical waveguide-CROW
  • Guided waves
  • Photanic crystals
  • Resonators


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