Numerical simulations of a simple refractive index sensor based on side-hole optical fibres

• Autorzy: Dudek Michał , Köllő Kinga K.

Identyfikatory

DOI

10.24425/opelre.2022.143607

• Języki publikacji: EN

Abstrakty

EN

In this work the influence of the cavity parameters on optical losses of a simple intensitybased in-line refractive index sensor utilizing a micromachined side-hole fibre was studied by means of numerical simulations. To perform these simulations, the Authors used the finite-difference time-domain method. The proposed sensor setup consists of light source, micromachined optical fibre as a sensor head, and a detector which makes it low-cost and easy to build. The changes of the external refractive index can be, therefore, recovered by direct measurements of the transmitted intensity from which insertion loss values can be calculated. By changing geometry of the cavity micromachined into the side-hole optical fibre, it was possible to determine its influence on the final sensor sensitivity and measurements range. Based on the provided analysis of simulations results, a simple fibre optic sensor can be fabricated mainly for sensing external liquids refractive index for application in biochemistry or healthcare.

Słowa kluczowe

EN

fibre optic sensor; finite-difference time-domain; numerical simulations; refractive index; side-hole optical fibre

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2022
• Tom: Vol. 30, No. 4
• Strony: art. no. e143607
• Opis fizyczny: Bibliogr. 29 poz., rys., wykr.

Twórcy

autor

Dudek Michał

• Institute of Applied Physics, Military University of Technology, 2 gen. Sylwestra Kaliskiego St., 00-908 Warsaw, Poland

• https://orcid.org/0000-0002-7766-0969

autor

Köllő Kinga K.

• Institute of Applied Physics, Military University of Technology, 2 gen. Sylwestra Kaliskiego St., 00-908 Warsaw, Poland

Bibliografia

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Uwagi

This research was financially supported by the Military University of Technology under research project UGB 22-791.