Efficient formalism for treating tapered structures using the Fourier modal method

Andreas Dyhl Østerkryger; Niels Gregersen

doi:10.1117/12.2225582

Efficient formalism for treating tapered structures using the Fourier modal method

Andreas Dyhl Østerkryger, Niels Gregersen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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.

Original language	English
Title of host publication	Proceedings of SPIE
Number of pages	7
Publisher	SPIE - International Society for Optical Engineering
Publication date	2016
Article number	988917
DOIs	https://doi.org/10.1117/12.2225582
Publication status	Published - 2016
Event	SPIE Photonics Europe 2016 - SQUARE Brussels Meeting Centre, Brussels, Belgium Duration: 3 Apr 2016 → 7 Apr 2016

Conference

Conference	SPIE Photonics Europe 2016
Location	SQUARE Brussels Meeting Centre
Country/Territory	Belgium
City	Brussels
Period	03/04/2016 → 07/04/2016

Keywords

Coupled-mode theory
Fourier modal method
Tapered structures
Computational photonics
Singlephoton sources

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10.1117/12.2225582

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SPIE Photonics Europe 2016
Østerkryger, A. D. (Participant)
3 Apr 2016 → 7 Apr 2016
Activity: Attending an event › Participating in or organising a conference

Cite this

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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.",

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AB - 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.

KW - Coupled-mode theory

KW - Fourier modal method

KW - Tapered structures

KW - Computational photonics

KW - Singlephoton sources

U2 - 10.1117/12.2225582

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M3 - Article in proceedings

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PB - SPIE - International Society for Optical Engineering

T2 - SPIE Photonics Europe 2016

Y2 - 3 April 2016 through 7 April 2016

ER -

Efficient formalism for treating tapered structures using the Fourier modal method

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Keywords

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SPIE Photonics Europe 2016

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