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On the origin and removal of interference patterns in coated multimode fibres

  • In this study, we present the experimental investigations on interference patterns, such as those already reported in VIMOS-IFU, and up to now no appropriate explanation has been presented. These interference patterns are produced in multimode fibres coated with acrylate or polyimide, which is the preferred coating material for the fibres used in IFUs. Our experiments show that, under specific conditions, cladding modes interact with the coating and produce interference. Our results show that the conditions at which the fibre is held during data acquisition has an impact in the output spectrum. Altering the positioning conditions of the fibre leads to the changes into the interference pattern, therefore, fibres should be carefully manipulated in order to minimise this potential problem and improve the performance of these instruments. Finally we present a simple way of predicting and modelling this interference produced from the visible to the near infrared spectra. This model can be included in the data reduction pipeline in order to remove the interference patterns. These results should be of interest for the optimisation of the data reduction pipelines of instruments using optical fibres. Considering these results will benefit innovations and developments of high performance fibre systems.

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Metadaten
Author:Yazmin Padilla Michel, Silvio Pulwer, Pouneh Saffari, Viachaslau KsianzouORCiD, Sigurd SchraderORCiD
URN:urn:nbn:de:kobv:526-opus4-15295
DOI (Version of Record):https://doi.org/10.1117/12.2233676
Publisher:Society of Photo-Optical Instrumentation Engineers (SPIE)
Document Type:Conference Proceeding
Language:English
Year of Publication:2016
Publishing Institution:Technische Hochschule Wildau
Release Date:2021/09/17
Tag:bending loss; coating material; data reduction; fringing; instrumentation; interference; multimode fibre
First Page:1517
Last Page:1527
Source:Yazmin Padilla Michel, Silvio Pulwer, Pouneh Saffari, Viachaslau Ksianzou, and Sigurd Schrader "On the origin and removal of interference patterns in coated multimode fibres", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991255 (22 July 2016); https://doi.org/10.1117/12.2233676
Copyright:Copyright 2016 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Faculties an central facilities:Fachbereich Ingenieur- und Naturwissenschaften
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Licence (German):Das Dokument ist urheberrechtlich geschützt
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