Efficient formalism for treating tapered structures using the Fourier modal method

Andreas Dyhl Østerkryger, Niels Gregersen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-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 languageEnglish
Title of host publicationProceedings of SPIE
Number of pages7
PublisherSPIE - International Society for Optical Engineering
Publication date2016
Article number988917
DOIs
Publication statusPublished - 2016
EventOptical Modelling and Design IV: SPIE Conference 9889 - SQUARE Brussels Meeting Centre, Brussels, Belgium
Duration: 3 Apr 20167 Apr 2016

Conference

ConferenceOptical Modelling and Design IV
LocationSQUARE Brussels Meeting Centre
CountryBelgium
CityBrussels
Period03/04/201607/04/2016

Keywords

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

Activities

  • 1 Participating in or organising a conference

SPIE Photonics Europe 2016

Andreas Dyhl Østerkryger (Participant)
3 Apr 20167 Apr 2016

Activity: Attending an eventParticipating in or organising a conference

Cite this

Østerkryger, A. D., & Gregersen, N. (2016). Efficient formalism for treating tapered structures using the Fourier modal method. In Proceedings of SPIE [988917] SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.2225582