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Proceedings Paper

Analytical model for the analysis of the electromagnetic field in grating couplers
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Paper Abstract

This paper presents a novel analytical model for the analysis of the electromagnetic field radiation in grating couplers. As will be shown, the radiation pattern of the grating couplers can be described with appropriate accuracy as periodic structures. The obtained field distribution of the coupler can be modeled as a sequence of Fourier series for particular distance values, periodicities and wavelengths. This is compatible with the Floquet-Bloch theory of periodic structures. With this model all relevant parameters for the radiation pattern can be investigated. The results of the proposed analytical model are compared with simulation results for a wavelength of 1550 nm. The model can be used for any periodic structure.

Paper Details

Date Published: 20 February 2017
PDF: 6 pages
Proc. SPIE 10108, Silicon Photonics XII, 101080W (20 February 2017); doi: 10.1117/12.2250522
Show Author Affiliations
Ali Dorostkar, Technische Univ. Braunschweig (Germany)
Soheil Mehrabkhani, Technische Univ. Braunschweig (Germany)
Julia Boeke, Technische Univ. Braunschweig (Germany)
Kambiz Jamshidi, TU Dresden (Germany)
Thomas Schneider, Technische Univ. Braunschweig (Germany)

Published in SPIE Proceedings Vol. 10108:
Silicon Photonics XII
Graham T. Reed; Andrew P. Knights, Editor(s)

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