Broadband photonic crystal waveguide 60° bend obtained utilizing topology optimization

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

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Topology optimization has been used to design a 60° bend in a single-mode planar photonic crystal waveguide. The design has been realized in a silicon-on-insulator material and we demonstrate a record-breaking 200-nm transmission bandwidth with an average bend loss of 0.43±0.27 dB for the TE polarization. The experimental results agree well with 3D finite-difference-time-domain simulations.
Original languageEnglish
JournalOptics Express
Volume12
Issue number24
Pages (from-to)5916-5921
ISSN1094-4087
Publication statusPublished - 2004

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