Abstract
This paper elaborates on how the finite element method is employed to model surface
acoustic waves generated by high aspect ratio electrodes and their interaction with optical
waves in a waveguide. With a periodic model it is shown that these electrodes act
as a mechanical resonator which slows down the SAWvelocity because of mechanical
energy storage. A finite model is furthermore employed to study the acousto-optical
interaction and shows that it is possible to get a bigger change in effective refractive
index with these surface acoustic waves compared to using conventional interdigital
transducers. Thus, this indicates a way to improve acousto-optical interaction.
Original language | English |
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Title of host publication | Proceedings of the 9. International Conference on Computational Structures Technology |
Editors | BHV Topping, M Papadrakakis |
Place of Publication | Stirlingshire, United Kingdom |
Publisher | Civil-Comp Press |
Publication date | 2008 |
Pages | paper 90 |
ISBN (Print) | 978-1-905088-23-2 |
Publication status | Published - 2008 |
Event | 9th International Conference on Computational Structures Technology - Athens, Greece Duration: 2 Sep 2008 → 5 Sep 2008 Conference number: 9 http://www.civil-comp.com/conf/cst2008.htm |
Conference
Conference | 9th International Conference on Computational Structures Technology |
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Number | 9 |
Country/Territory | Greece |
City | Athens |
Period | 02/09/2008 → 05/09/2008 |
Internet address |
Keywords
- finite element analysis
- perfectly matched layers
- piezoelectric material
- acousto-optic interaction
- surface acoustic waves