Frankfurt 2006 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 59: Photonische Kristalle IV
Q 59.4: Vortrag
Donnerstag, 16. März 2006, 11:55–12:10, HI
Photonic crystal waveguides in the IOSOI-material-system — •Daniel Pergande1, Torsten M. Geppert2, Alexey Milenin2, Cecile Jamois3, and Ralf B. Wehrspohn1 — 1Universität Paderborn, Dept. Physik, D-33095 Paderborn — 2Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle — 3Advanced Technology Institute, University of Surrey, Guildford, Surrey, GU2 7XH, UK
Optical waveguides are a basic elements of any kind of photonic devices. One of the major advantages of the IOSOI system is its compatibility with standard Si processes, allowing for the simultaneous integration of photonic and electronic devices on the same chip. The IOSOI-material system consists of a symmetrical slab-structure made of a thin silicon layer embedded in between two silica layers.
Photonic crystal waveguides are realized by RIE/ICP-etching of IOSOI. For a W1 waveguide, guided modes lying below the lightline exist. As a consequence, in theory nearly lossless propagation of light in the form of Blochmodes is possible.
First transmission measurements at 1.55 um on conventional ridge waveguides as well as corresponding PhC waveguides sucessfully realized in the IOSOI material system show very low losses. Furthermore, first broadband measurements were performed on the PhC waveguides and show PhC properties, such as a stopgap and a bandedge.