Stuttgart 2012 – wissenschaftliches Programm
Q 23.7: Vortrag
Dienstag, 13. März 2012, 12:00–12:15, V38.01
Silicon electro-optic modulators based on one-dimensional photonic crystals — •Aws Al-Saadi, Bülent Franke, Sebastian Kupijai, Ulrike Woggon, Hans Eichler, and Stefan Meister — Technische Universität Berlin, Institut für Optik und Atomare Physik, Berlin, Germany
Electro-optic modulators based on a 1-D photonic crystal micro-resonators are fabricated in sub-micrometer silicon-on-insulator (SOI) rib waveguides. Modulation results from change of the carrier density inside the resonator cavity due to applied an electric field produced by a p-i-n diode formed inside the resonator cavity. Carrier density variations result in refractive index changes which lead to shift of the transmission peak of the resonator. The intensity of the transmitted light can therefore be modulated. We study the influence of the intrinsic width of the modulator p-i-n diode on the modulation depth, speed, absorption losses as well as power consumption. Theoretical and experimental results will be presented.