Rigorous analysis of the transverse acoustic modes in optical waveguides by exploiting their structural symmetry

Rahman, B. M., Rahman, M. M., Sriratanavaree, S., Kejalakshmy, N. & Grattan, K. T. V. (2014). Rigorous analysis of the transverse acoustic modes in optical waveguides by exploiting their structural symmetry. Applied Optics, 53(29), pp. 6797-6803. doi: 10.1364/AO.53.006797

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Abstract

A full-vectorial finite-element-based approach has been developed to find accurate modal solutions of acoustic modes in Ge-doped planar silica waveguides. The structural symmetry is exploited, and Aitken’s extrapolation is also used to improve the accuracy of the solution. The spatial dependences of the dominant and nondominant displacement vectors are shown for the fundamental and higher-order transverse modes. The modal hybridness and modal birefringence between the two fundamental transverse modes are also presented.

Item Type: Article
Additional Information: © 2014 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Subjects: R Medicine > RE Ophthalmology
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/12227

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