Conference paper
Topology optimised planar photonic crystal building blocks
Abstract
A photonic crystal waveguide (PhCW) 1x4 splitter has been constructed from PhCW 60° bends1 and Y-splitters2 that have been designed individually by utilising topology optimisation3. The splitter has been fabricated in a silicon-on-insulator material (Fig. 1) and exhibits a broadband splitting for the TE-polarisation with an average excess loss of 1.55±0.54 dB for a 110 nm bandwidth.
The 1x4 splitter demonstrates that individual topology-optimised parts can be used as building blocks to realise high-performance nanophotonic circuits. 1L. H. Frandsen et al., Opt. Express 12, 5916-5921 (2004) 2P. I. Borel et al., Electron. Lett. 41, 69-71 (2005) 3J. S. Jensen and O. Sigmund, App. Phys.
Lett. 84, 2022-2024 (2004)
| Language: | English |
|---|---|
| Year: | 2005 |
| Proceedings: | NanoDay DTU |
| Types: | Conference paper |
| ORCIDs: | Frandsen, Lars Hagedorn , Jensen, Jakob Søndergaard and Sigmund, Ole |
