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Rigorous characterization of acoustic-optical interactions in silicon slot waveguides by full-vectorial finite element method

Sriratanavaree, S., Rahman, B. M., Leung, D. M. H., Kejalakshmy, N. and Grattan, K. T. V. (2014). Rigorous characterization of acoustic-optical interactions in silicon slot waveguides by full-vectorial finite element method. Optics Express, 22(8), pp. 9528-9537. doi: 10.1364/OE.22.009528

Abstract

For the first time detailed interactions between optical and acoustic modes in a silicon slot waveguide are presented. A new computer code has been developed by using a full-vectorial formulation to study the acoustic modes in optical waveguides. The results have shown that the acoustic modes in an optical slot waveguide are not purely longitudinal or transverse but fully hybrid in nature. The model allows the effects of Stimulated Brillouin Scattering and the associated frequency shift due to the interaction of these hybrid acoustic modes with the fully hybrid optical mode also to be presented.

Publication Type: Article
Additional Information: This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-22-8-9528&id=283040. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Publisher Keywords: Numerical approximation and analysis, Scattering, stimulated Brillouin, Waveguides, Nonlinear optics, Stimulated scattering, modulation, Integrated optics, Guided waves
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments: School of Mathematics, Computer Science & Engineering > Engineering
School of Mathematics, Computer Science & Engineering > Engineering > Electrical & Electronic Engineering
URI: http://openaccess.city.ac.uk/id/eprint/3611
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