Visualising Spatial Light Intensity Distribution on Optical Fibre Core with Spreadsheet

Pratidhina, Elisabeth; Kuswanto, Heru; Dwandaru, Wipsar Sunu Brams

doi:10.1590/1806-9126-RBEF-2020-0201

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Physics Education Research • Rev. Bras. Ensino Fís. 42 • 2020 • https://doi.org/10.1590/1806-9126-RBEF-2020-0201 linkcopy

Visualising Spatial Light Intensity Distribution on Optical Fibre Core with Spreadsheet

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Spreadsheet software is a practical and powerful computing and graphical tool. This study presents a simple way to build a physics simulation in spreadsheet software. The simulation aims to visualise spatial light intensity distribution on an optical fibre core. The simulation can visualise various modes. The mathematical equation in optical fibre is quite complicated. The visualisation may help students in interpreting the mathematical equation and making a connection between theoretical modelling and experiment.

Keywords:
Spreadsheet; Optical Fibre; Mode; Visualisation

Cell	Variable	Formula
B2	Core radii a	= 0.00007
B6	Azimuth index (l),	input range (1,100), interval 1
D2	k_T coefficient	=(B6+2D6)PI()/2/B2
D6	Index m	input range (1,100), interval 1
G3-ER3	y-coordinate	range (−0.00007, 0,000007), interval 0.000001
G4-F144	x-coordinate	range (−0.00007, 0,000007), interval 0.000001
H4-ER144	Intensity	=BESSELJ($D$2SQRT($G4^∧2+H$3^∧2), $B$6)^∧2(COS($B$6*ATAN($G4/H$3)))^∧2

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Sociedade Brasileira de Física - SBF Av. Prof. Lineu Prestes, 748, Bloco B - Cidade Universitária, São Paulo, SP, Brasil, CEP 05508-000, Tel: +55 (11) 3091-6680 - São Paulo - SP - Brazil
E-mail: rbef@sbfisica.org.br, marcellof@unb.br

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