Efficient photonic crystal directional couplers

Autor: Morten Thorhauge, Peter Ingo Borel, Lars Hagedorn Frandsen
Rok vydání: 2003
Předmět:
Zdroj: Optics Letters. 28:1525
ISSN: 1539-4794
0146-9592
DOI: 10.1364/ol.28.001525
Popis: We demonstrate highly efficient and spectrally flat broadband coupling in photonic crystal directional couplers. The result is obtained by use of a novel design with smaller holes between coparallel photonic crystal waveguides for efficient channel-to-channel coupling. The system studied is based on a planar hexagonal photonic crystal lattice of holes made in silicon-on-insulator material. Results from three-dimensional finite-difference time domain modeling are shown to closely match results measured on fabricated samples.
Databáze: OpenAIRE