Topology optimized mode multiplexing in silicon-on-insulator photonic wire waveguides

Louise Floor Frellsen, Yunhong Ding, Ole Sigmund, Lars Hagedorn Frandsen

Research output: Contribution to journalJournal articleResearchpeer-review

423 Downloads (Pure)


We design and experimentally verify a topology optimized low-loss and broadband two-mode (de-)multiplexer, which is (de-)multiplexing the fundamental and the first-order transverse-electric modes in a silicon photonic wire. The device has a footprint of 2.6 μm x 4.22 μm and exhibits a loss 14 dB in the C-band. Furthermore, we demonstrate that the design method can be expanded to include more modes, in this case including also the second order transverse-electric mode, while maintaining functionality.
Original languageEnglish
JournalOptics Express
Issue number15
Pages (from-to)16866-16873
Publication statusPublished - 2016


  • Mathematical methods in physics
  • Numerical approximation and analysis
  • Modes
  • Subwavelength structures
  • Integrated optics devices


Dive into the research topics of 'Topology optimized mode multiplexing in silicon-on-insulator photonic wire waveguides'. Together they form a unique fingerprint.

Cite this