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Proceedings Paper

Efficient formalism for treating tapered structures using the Fourier modal method
Author(s): Andreas Dyhl Osterkryger; Niels Gregersen
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Paper Abstract

We investigate the development of the mode occupations in tapered structures using the Fourier modal method. In order to use the Fourier modal method, tapered structures are divided into layers of uniform refractive index in the propagation direction and the optical modes are found within each layer. This is not very efficient and in this proceeding we take the first steps towards a more efficient formalism for treating tapered structures using the Fourier modal method. We show that the coupling coefficients through the structure are slowly varying and that only the first few modes are occupied. We exploit both of these properties in the developing of a more efficient formalism.

Paper Details

Date Published: 27 April 2016
PDF: 7 pages
Proc. SPIE 9889, Optical Modelling and Design IV, 988917 (27 April 2016); doi: 10.1117/12.2225582
Show Author Affiliations
Andreas Dyhl Osterkryger, Technical Univ. of Denmark (Denmark)
Niels Gregersen, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 9889:
Optical Modelling and Design IV
Frank Wyrowski; John T. Sheridan; Youri Meuret, Editor(s)

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